chore(deps): bump golang from `69adc37` to `ef8c5c7` in /e2e (#5076)

Bumps golang from `69adc37` to `ef8c5c7`.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.24.5-bookworm
  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:1.24.5-bookworm@sha256:69adc37c19ac6ef724b561b0dc675b27d8c719dfe848db7dd1092a7c9ac24bc6 AS builder
+FROM golang:1.24.5-bookworm@sha256:ef8c5c733079ac219c77edab604c425d748c740d8699530ea6aced9de79aea40 AS builder
 
 ENV KUBECTL_VERSION="v1.28.3"
 ENV HELM_VERSION="v3.13.1"