install deps only if needed

install_private_repos.py

@@ -4,6 +4,7 @@ GITHUB_TOKEN = os.getenv("GITHUB_TOKEN")
 if GITHUB_TOKEN is not None:
     try:
         cmd = f'pip3 install "seavision[inference] @ git+https://{GITHUB_TOKEN}@github.com/SEA-AI/seavision"'
+        cmd += ' --upgrade-strategy only-if-needed'
         os.system(cmd)
     except Exception as e:
         print(f"Error: {e}")