feature: Add support for .NET Lambda layers.

[jaffinito]

• Adds support for installing the .NET lambda layer.
• Includes a pair of tests for the two new runtimes.

[codecov[bot]]

Codecov Report

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

Project coverage is 78.52%. Comparing base (9ba20d8) to head (37c67b0).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #283 +/- ## ========================================== + Coverage 78.44% 78.52% +0.08% ========================================== Files 16 16 Lines 1313 1318 +5 ========================================== + Hits 1030 1035 +5 Misses 283 283 ```

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