fix: refactor publish command (#11)

## Description

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relates to #1234

## Checklist

- [ ] Issue was linked above
- [ ] Code format was applied: `make fmt`
- [ ] Examples were added / adjusted (see `examples/` directory)
- [x] Docs are up-to-date: `make generate-docs` (will be checked by CI)
- [ ] Unit tests got implemented or updated
- [ ] Acceptance tests got implemented or updated (see e.g. [here](f5f99d1709/stackit/internal/services/dns/dns_acc_test.go))
- [x] Unit tests are passing: `make test` (will be checked by CI)
- [x] No linter issues: `make lint` (will be checked by CI)

Reviewed-on: #11
Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>
Co-committed-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>

cmd/cmd/publishCmd.go

@@ -293,8 +293,11 @@ func createTargetDirs(destPath string) error {
 		if err != nil {
 			return err
 		}
+		err = createDir(path.Join(destPath, v))
+		if err != nil {
+			return err
+		}
 	}
-
 	return nil
 }
 
@@ -405,7 +408,8 @@ func createArchitectureFiles(namespace, provider, distPath, repoName, version, g
 {
   "protocols": [
     "4.0",
-    "5.1"
+    "5.1",
+    "6.0"
   ],
   "os": "%s",
   "arch": "%s",