chore(deps): bump the dev-dependencies group with 1 update

Bumps the dev-dependencies group with 1 update: golang.


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

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

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.20.5 as builder
+FROM golang:1.21.0 as builder
 
 WORKDIR /workspace
 # Copy the Go Modules manifests