fix(deps): update dependency @azure/identity to v4

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

plugins/techdocs-node/package.json

@@ -43,7 +43,7 @@
     "@aws-sdk/credential-providers": "^3.350.0",
     "@aws-sdk/lib-storage": "^3.350.0",
     "@aws-sdk/types": "^3.347.0",
-    "@azure/identity": "^3.2.1",
+    "@azure/identity": "^4.0.0",
     "@azure/storage-blob": "^12.5.0",
     "@backstage/backend-common": "workspace:^",
     "@backstage/backend-plugin-api": "workspace:^",