Bump golang from 1.21 to 1.22 in /build

Bumps golang from 1.21 to 1.22.

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

Signed-off-by: dependabot[bot] <support@github.com>

build/Dockerfile

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1.6
-FROM golang:1.21 as base
+FROM golang:1.22 as base
 ARG VERSION
 ARG TARGETARCH