build(deps): bump @azure/identity from 1.5.0 to 2.0.1

Bumps [@azure/identity](https://github.com/Azure/azure-sdk-for-js) from 1.5.0 to 2.0.1.
- [Release notes](https://github.com/Azure/azure-sdk-for-js/releases)
- [Commits](https://github.com/Azure/azure-sdk-for-js/compare/@azure/identity_1.5.0...@azure/identity_2.0.1)

---
updated-dependencies:
- dependency-name: "@azure/identity"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

packages/techdocs-common/package.json

@@ -36,7 +36,7 @@
     "url": "https://github.com/backstage/backstage/issues"
   },
   "dependencies": {
-    "@azure/identity": "^1.5.0",
+    "@azure/identity": "^2.0.1",
     "@azure/storage-blob": "^12.5.0",
     "@backstage/backend-common": "^0.10.0",
     "@backstage/catalog-model": "^0.9.7",