chore: release 3.1.2 (#299)

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

Author: release-please[bot]

container-analysis/snippets/package.json

@@ -14,7 +14,7 @@
     "test": "mocha --timeout 100000 test/**.test.js"
   },
   "dependencies": {
-    "@google-cloud/containeranalysis": "^3.1.1",
+    "@google-cloud/containeranalysis": "^3.1.2",
     "@google-cloud/pubsub": "^2.0.0",
     "p-retry": "^4.1.0"
   },