Use Go 1.21 in the GitHub action

Author: battlmonstr

.github/workflows/create-release.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.19.x
+          go-version: 1.21.x
 
       - uses: actions/checkout@v3