fix: correct npm repository URL for OIDC provenance validation

The npm OIDC provenance check requires repository.url in package.json
to match the actual GitHub repo URL. Was "https://github.com/kernel",
needs to be "https://github.com/kernel/cli".

Co-authored-by: Cursor <[email protected]>

Author: rgarcia

.goreleaser.yaml

@@ -40,7 +40,7 @@ brews:
 
 npms:
   - name: "@onkernel/cli"
-    repository: "https://github.com/kernel"
+    repository: "https://github.com/kernel/cli"
     bugs: https://github.com/kernel/cli/issues
     description: Kernel CLI
     homepage: https://www.kernel.sh/docs