Resolve Hydra ListConfig objects

[RafayAK]

What does this PR do?

Resolves Hydra ListConfig objects so that dynamic inteploation works when printing config tree. Also updated the example.yaml experiment to showcase the use.

Fixes https://github.com/ashleve/lightning-hydra-template/issues/611

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• [x] Did you make sure your PR does only one thing, instead of bundling different changes together?
• [x] Did you list all the breaking changes introduced by this pull request?
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:rocket:

[codecov-commenter]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (bddbc24) 83.24% compared to head (e0db27f) 83.24%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #612 +/- ## ======================================= Coverage 83.24% 83.24% ======================================= Files 11 11 Lines 376 376 ======================================= Hits 313 313 Misses 63 63 ``` | [Files](https://app.codecov.io/gh/ashleve/lightning-hydra-template/pull/612?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | Coverage Δ | | |---|---|---| | [src/utils/rich\_utils.py](https://app.codecov.io/gh/ashleve/lightning-hydra-template/pull/612?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-c3JjL3V0aWxzL3JpY2hfdXRpbHMucHk=) | `82.60% <100.00%> (ø)` | |

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[RafayAK]

After the change suggested in this PR the printed config tree is correct and has the dynamic interploation for list items as well:

CONFIG
├── data
│   └── _target_: src.data.mnist_datamodule.MNISTDataModule                                                                                                                                        
│       ...                                                                                                                                                                   
│                                                                                                                                                                                                  
├── model
│   └── _target_: src.models.mnist_module.MNISTLitModule                                                                                                                                           
│       ...                                                                                                                                                                       
│                                                                                                                                                                                                  
├── callbacks
│   └── ...                                                                                                                              
│                                                                                                                                                                                                  
├── logger
│   └── wandb:                                                                                                                                                                                     
│         tags:                                                                                                                                                                                    
│         - mnist                                                                                                                                                                                  
│         - simple_dense_net                                                                                                                                                                       
│         - train                                                                                                                                                                                  
│         - batch_size_64                                                                                                                                                                          
│         group: mnist                                                                                                                                                                             
│       aim:                                                                                                                                                                                       
│         experiment: mnist                                                                                                                                                                        
│                                                                                                                                                                                                  
...
...                                                                                                                                                                        
├── tags
│   └── - mnist                                                                                                                                                                                    
│       - simple_dense_net                                                                                                                                                                         
│       - train                 # RESOLVED                                                                                                                                                           
│       - batch_size_64         # RESOLVED                                                                                                                                                                   
│                                                                                                                                                                                                  
...