chore(deps): bump golang in the docker group across 1 directory

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


Updates `golang` from 1.21 to 1.23

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

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

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.21 AS builder
+FROM golang:1.23 AS builder
 ARG TARGETOS
 ARG TARGETARCH