Bump azure-core from 1.36.0 to 1.38.0 (#119)

Bumps [azure-core](https://github.com/Azure/azure-sdk-for-python) from 1.36.0 to 1.38.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-python/releases)
- [Commits](Azure/azure-sdk-for-python@azure-core_1.36.0...azure-core_1.38.0)

---
updated-dependencies:
- dependency-name: azure-core
  dependency-version: 1.38.0
  dependency-type: indirect
...

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