Bump cloud-sql-connectors/cloud-sql-proxy (#1118)

Bumps [cloud-sql-connectors/cloud-sql-proxy](https://github.com/GoogleCloudPlatform/cloud-sql-proxy) from 2.11.2-alpine to 2.11.3-alpine.
- [Release notes](https://github.com/GoogleCloudPlatform/cloud-sql-proxy/releases)
- [Changelog](https://github.com/GoogleCloudPlatform/cloud-sql-proxy/blob/main/CHANGELOG.md)
- [Commits](GoogleCloudPlatform/cloud-sql-proxy@v2.11.2...v2.11.3)

---
updated-dependencies:
- dependency-name: cloud-sql-connectors/cloud-sql-proxy
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile.deps

@@ -5,5 +5,5 @@
 # !!!!!!!!!!!!!!
 #
 # If dependabot proposes an update to the container listed below, you should also update the value listed in '.ko.yaml' and cut a new release of scaffolding
-FROM gcr.io/cloud-sql-connectors/cloud-sql-proxy:2.11.2-alpine as cloud-sql-proxy
+FROM gcr.io/cloud-sql-connectors/cloud-sql-proxy:2.11.3-alpine as cloud-sql-proxy
 ENV FOO=BAR