Bump golang in the docker-dependencies group across 1 directory

Bumps the docker-dependencies group with 1 update in the / directory: golang.


Updates `golang` from 1.21.3 to 1.22.3

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

Signed-off-by: dependabot[bot] <[email protected]>

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.21.3 as builder
+FROM golang:1.22.3 as builder
 
 WORKDIR /workspace