Use temporary GITHUB_TOKEN for publishing to ghcr (#3308)

Signed-off-by: Brian Hardock <[email protected]>

Author: fibonacci1729

.github/workflows/publish-wit.yml

@@ -31,7 +31,7 @@ jobs:
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
-          password: ${{ secrets.REGISTRY_PAT }}
+          password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and publish WIT package
         shell: bash