Bump docfx from 2.73.1 to 2.73.2 (#1791)

Bumps [docfx](https://github.com/dotnet/docfx) from 2.73.1 to 2.73.2.
- [Release notes](https://github.com/dotnet/docfx/releases)
- [Changelog](https://github.com/dotnet/docfx/blob/main/RELEASENOTE.md)
- [Commits](dotnet/docfx@v2.73.1...v2.73.2)

---
updated-dependencies:
- dependency-name: docfx
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.config/dotnet-tools.json

@@ -15,7 +15,7 @@
       ]
     },
     "docfx": {
-      "version": "2.73.1",
+      "version": "2.73.2",
       "commands": [
         "docfx"
       ]