Add GITHUB_TOKEN in docker buildx build command for custom flavor (#6545)

* fix(custom_flavor): Add GITHUB_TOKEN in docker build command for building custom flavor docker image

Fix issue #6544

* Update CHANGELOG.md

* fix(custom_flavor): Apply suggestion from Cursor Bugbot

* Update build.py

Author: davidfevre-gouv-nc

.automation/build.py

@@ -3597,11 +3597,14 @@ def build_custom_flavor(dockerfile):
     )
     command = [
         "docker",
+        "buildx",
         "build",
         "-t",
         tag_id,
         "-f",
         dockerfile,
+        "--secret",
+        "id=GITHUB_TOKEN",
         work_dir,
     ]
     logging.info("Running command: " + " ".join(command))

CHANGELOG.md

@@ -23,6 +23,7 @@ Note: Can be used with `oxsecurity/megalinter@beta` in your GitHub Action mega-l
   - Install dotenv-linter deterministically, by @bdovaz in <https://github.com/oxsecurity/megalinter/pull/6385>
 
 - Fixes
+  - [#6544](https://github.com/oxsecurity/megalinter/issues/6544): Add GITHUB_TOKEN in docker build command for custom flavor
 
 - Reporters