👷 up(ci): add ci tests check on go 1.20

Author: inhere

.github/workflows/go.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go_version: [1.18, 1.19]
+        go_version: [1.18, 1.19, '1.20']
 
     steps:
     - name: Check out code