Add `OrderedMap.SetType()` to allow updating TypeInfo

[fxamacker]

Closes #373

This feature is needed by Cadence migrations to update static types. For more details, see

• https://github.com/onflow/cadence/issues/3096#issuecomment-1977580596.

This PR allows updating static types of OrderedMap container.

---

• [ ] Targeted PR against main branch
• [x] Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• [x] Code follows the standards mentioned here
• [x] Updated relevant documentation
• [x] Re-reviewed Files changed in the Github PR explorer
• [x] Added appropriate labels

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 66.09%. Comparing base (e1a76d5) to head (8e77472).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## feature/stable-cadence #375 +/- ## ========================================================== + Coverage 66.03% 66.09% +0.06% ========================================================== Files 14 14 Lines 8225 8233 +8 ========================================================== + Hits 5431 5442 +11 + Misses 2115 2113 -2 + Partials 679 678 -1 ```

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