refactor: apply review suggestions

Signed-off-by: Camila Belo <camilaibs@gmail.com>

plugins/techdocs-node/package.json

@@ -53,7 +53,6 @@
     "@aws-sdk/types": "^3.347.0",
     "@azure/identity": "^4.0.0",
     "@azure/storage-blob": "^12.5.0",
-    "@backstage/backend-common": "workspace:^",
     "@backstage/backend-plugin-api": "workspace:^",
     "@backstage/catalog-model": "workspace:^",
     "@backstage/config": "workspace:^",