chore(deps): bump golang from 1.22.5-bookworm to 1.22.6-bookworm in /e2e (#3783)

Bumps golang from 1.22.5-bookworm to 1.22.6-bookworm.

---
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:af9b40f2b1851be993763b85288f8434af87b5678af04355b1e33ff530b5765f as builder
+FROM golang:1.22.6-bookworm@sha256:39b7e6ebaca464d51989858871f792f2e186dce8ce0cbdba7e88e4444b244407 as builder
 
 ENV KUBECTL_VERSION="v1.28.3"
 ENV HELM_VERSION="v3.13.1"