Bump golang from 5a3e169 to 925fe3f in /integration (#1363)

Bumps golang from `5a3e169` to `925fe3f`.

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

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

integration/Dockerfile

@@ -1,6 +1,6 @@
 # This Dockerfile builds a base image for the certificate-transparency-go CloudBuild integration testing.
 # See https://hub.docker.com/_/golang for the set of golang base images.
-FROM golang:1.22.0-bookworm@sha256:5a3e1698b23e1967b77493a0c4710aee36873bfdd839786a6184a94530d97709 as ct_testbase
+FROM golang:1.22.0-bookworm@sha256:925fe3fa28ba428cf67a7947ae838f8a1523117b40e3e6b5106c378e3f97fa29 as ct_testbase
 
 WORKDIR /testbase