Bump golang in /integration in the all-deps group (#1204)

Bumps the all-deps group in /integration with 1 update: golang.


Updates `golang` from 1.22.5-bullseye to 1.22.6-bullseye

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all-deps
...

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

integration/Dockerfile

@@ -1,5 +1,5 @@
 # This Dockerfile builds a base image for the CloudBuild integration testing.
-FROM golang:1.22.5-bullseye@sha256:583d5af8289d30de50aa0dcf4985d8b8746e52622becd6e1a62cfe191d5275a5 AS testbase
+FROM golang:1.22.6-bullseye@sha256:37f09f0c199a07c2e72ae2cfd758681fae0681240c71d6fad42d9d090c437c38 AS testbase
 
 WORKDIR /testbase