CI: improve more ci worflow

.github/workflows/nightly.yml

@@ -167,10 +167,10 @@ jobs:
           python3 scripts/ci/workflow.py deploy \
             Dependencies/apps-v2.json \
             "_includes/source.json" \
-            "${{ env.ref_name }}" \
+            "${{ env.ref }}" \
             "$SHORT_COMMIT" \
             "$MARKETING_VERSION" \
             "$VERSION" \
-            "${{ env.ref_name }}" \
+            "${{ env.ref }}" \
             "com.SideStore.SideStore" \
             "SideStore.ipa"

scripts/ci/workflow.py

@@ -264,8 +264,8 @@ def deploy(repo, source_json, release_tag, short_commit, marketing_version, vers
 
     run(f"pushd {repo}", check=True)
     try:
-        # source_json is RELATIVE to repo
-        if not Path(source_json).exists():
+        source_path = repo / source_json
+        if not source_path.exists():
             raise SystemExit(f"{source_json} missing inside repo")
 
         run(