chore(deps): bump golang from `6c27802` to `af9b40f` in /e2e (#3734)

Bumps golang from `6c27802` to `af9b40f`.

---
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>

e2e/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22.5-bookworm@sha256:6c2780255bb7b881e904e303be0d7a079054160b2ce1efde446693c0850a39ad as builder
+FROM golang:1.22.5-bookworm@sha256:af9b40f2b1851be993763b85288f8434af87b5678af04355b1e33ff530b5765f as builder
 
 ENV KUBECTL_VERSION="v1.28.3"
 ENV HELM_VERSION="v3.13.1"