Moved to a PR based system, which notifies on conflict

.github/pull.yml

@@ -0,0 +1,9 @@
+version: "1"
+rules:
+  - base: master # Target branch
+    upstream: SpigotMC:master # Must be in the same fork network.
+    mergeMethod: hardreset # Optional, one of [none, merge, squash, rebase, hardreset], Default: none.
+    mergeUnstable: false # merge pull request even when the mergeable_state is not clean. Default: false
+    conflictReviewers: # Optional, on merge conflict assign a reviewer
+      - Tim203
+conflictLabel: "merge-conflict" # Optional, on merge conflict assign a custom label, Default: merge-conflict

.github/workflows/publish.yml

@@ -0,0 +1,26 @@
+name: Sync and publish to opencollab repo
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - "master"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-java@v4
+      with:
+        java-version: 8
+        distribution: zulu
+        server-id: opencollab
+        server-username: MAVEN_USERNAME
+        server-password: MAVEN_PASSWORD
+    - name: Publish package
+      run: mvn --batch-mode deploy
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        MAVEN_USERNAME: ${{ vars.DEPLOY_USER }}
+        MAVEN_PASSWORD: ${{ secrets.DEPLOY_PASS }}