Try to automatically create swift pm dependency update prs

.github/workflows/xcode-swift-dependencies.yaml

@@ -0,0 +1,43 @@
+name: Xcode Dependencies
+
+on: 
+  schedule:
+    - cron: '17 13 * * *'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  dependencies:
+    runs-on: macos-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Resolve Dependencies
+        id: resolution
+        uses: monal-im/action-xcodeproj-spm-update@main
+        with:
+          forceResolution: true
+          failWhenOutdated: false
+          directory: Monal
+          workspace: Monal.xcworkspace
+          scheme: Monal Alpha
+
+      - name: Create Pull Request
+        if: steps.resolution.outputs.dependenciesChanged == 'true'
+        uses: peter-evans/create-pull-request@v7
+        with:
+            token: ${{ secrets.PAT }}
+            commit-message: Update Xcode Dependencies
+            title: Updated Xcode Dependencies
+            body: |
+              - Dependency updates
+  
+              Auto-generated by [create-pull-request][1]
+
+              [1]: https://github.com/peter-evans/create-pull-request
+            branch: update-dependencies
+            delete-branch: true