ci: Fix build pull request action permission

Author: LisoUseInAIKyrios

.github/workflows/build_pull_request.yml

@@ -21,6 +21,5 @@ jobs:
 
       - name: Build
         env:
-          GPR_USER: ${{ secrets.GPR_USER }}
-          GPR_TOKEN: ${{ secrets.GPR_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: ./gradlew build --no-daemon -Pgpr.user=${{ env.GPR_USER }} -Pgpr.key=${{ env.GPR_TOKEN }}