Merge pull request #507 from crossplane/renovate/golang-1.x

Update dependency golang to v1.21.0

Author: phisco

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ on:
 
 env:
   # Common versions
-  GO_VERSION: '1.20.7'
+  GO_VERSION: '1.21.0'
   GOLANGCI_VERSION: 'v1.54.1'
 
 jobs: