fix: configure github-release plugin to use GitHub API instead of Gitea

- Add base_url and upload_url pointing to GitHub API
- Explicitly set repo and owner for GitHub repository
- Fixes 401 authentication error in release pipeline

.drone.yml

@@ -114,6 +114,10 @@ steps:
     settings:
       api_key:
         from_secret: GITHUB_TOKEN
+      base_url: https://api.github.com/
+      upload_url: https://uploads.github.com/
+      repo: the-luap/picpeak
+      owner: the-luap
       title: "PicPeak ${DRONE_TAG}"
       note: |
         # PicPeak ${DRONE_TAG}