chore: update go version to 1.21 for release workflow

Author: sreya

.github/workflows/release.yaml

@@ -35,7 +35,7 @@ jobs:
 
       - uses: actions/setup-go@v3
         with:
-          go-version: "~1.20"
+          go-version: "~1.21"
 
       - name: Get Version
         run: echo "version=$(./scripts/version.sh)" >> $GITHUB_OUTPUT