feat(techdocs): update aws-sdk to v3

packages/techdocs-common/package.json

@@ -36,6 +36,7 @@
     "url": "https://github.com/backstage/backstage/issues"
   },
   "dependencies": {
+    "@aws-sdk/client-s3": "^3.0.0",
     "@backstage/backend-common": "^0.4.2",
     "@backstage/catalog-model": "^0.6.0",
     "@backstage/config": "^0.1.2",
@@ -43,7 +44,6 @@
     "@google-cloud/storage": "^5.6.0",
     "@types/dockerode": "^3.2.1",
     "@types/express": "^4.17.6",
-    "aws-sdk": "^2.817.0",
     "cross-fetch": "^3.0.6",
     "dockerode": "^3.2.1",
     "express": "^4.17.1",