Bump Microsoft.VisualStudio.Threading.Analyzers from 17.10.48 to 18.7.23 (#182)

---
updated-dependencies:
- dependency-name: Microsoft.VisualStudio.Threading.Analyzers
  dependency-version: 18.7.23
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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