ci: improve CI workflow and test stability across OSs

- Update Go versions in GitHub Actions workflow from `1.21, 1.22` to `1.22, 1.23`

Signed-off-by: appleboy <[email protected]>

.github/workflows/testing.yml

@@ -24,7 +24,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        go: [1.21, 1.22]
+        go: [1.22, 1.23]
         include:
           - os: ubuntu-latest
             go-build: ~/.cache/go-build