Build releases with Go 1.21 (#1840)

Author: imjasonh

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
         run: git fetch --prune --unshallow
       - uses: actions/setup-go@v4
         with:
-          go-version: 1.18
+          go-version: 1.21
           check-latest: true
       - uses: goreleaser/[email protected]
         id: run-goreleaser