deps(docker): bump golang from c7e98cc to 16e774b (#572)

Bumps golang from `c7e98cc` to `16e774b`.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.26.1
  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>

Author: dependabot[bot]

Dockerfile

@@ -9,7 +9,7 @@ RUN set -eux; cd /workspace/frontend; \
 	npm run build
 
 # Build the manager binary
-FROM golang:1.26.1@sha256:c7e98cc0fd4dfb71ee7465fee6c9a5f079163307e4bf141b336bb9dae00159a5 AS builder
+FROM golang:1.26.1@sha256:16e774b791968123d6af5ba4eec19cf91c4208cb1f5849efda5d4ffaf6d1c038 AS builder
 ARG TARGETOS
 ARG TARGETARCH