Add newer go versions

Author: scr-oath

.github/workflows/ci.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: ['1.14', '1.15', '1.16', '1.17', '1.18', '1.19']
+        go: ['1.14', '1.15', '1.16', '1.17', '1.18', '1.19', '1.20', '1.21']
 
     services: {}
     steps: