Add workflow

.github/workflows/update-pkl.yml

@@ -0,0 +1,53 @@
+name: Pkl Update
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 13 * * 1"
+
+jobs:
+  version:
+    runs-on: ubuntu-latest
+    outputs:
+      current-version: ${{ env.PKL_VERSION }}
+      latest-version: ${{ steps.pkl-release.outputs.release }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          ref: "develop"
+      - name: Get current Pkl version
+        run: |
+          VER=$(cat .pkl-version)
+          echo "PKL_VERSION=$VER" >> $GITHUB_ENV
+      - id: pkl-release
+        uses: pozetroninc/github-action-get-latest-release@master
+        with:
+          owner: apple
+          repo: pkl
+          excludes: prerelease, draft
+  update:
+    runs-on: ubuntu-latest
+    needs: version
+    if: ${{ needs.version.outputs.current-version != needs.version.outputs.latest-version }}
+    permissions:
+      contents: write
+      pull-requests: write
+    steps: 
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          ref: "develop"
+      - name: Find and Replace
+        uses: jacobtomlinson/gha-find-replace@v3
+        with:
+          find: "${{ needs.version.outputs.current-version }}"
+          replace: "${{ needs.version.outputs.latest-version }}"
+          regex: false
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v6
+        with:
+          branch: "update-pkl/feature/${{ needs.version.outputs.latest-version }}-pkl-lang"
+          title: "Update Pkl from ${{ needs.version.outputs.current-version }} to ${{ needs.version.outputs.latest-version }}"
+          assignees: BenMMcLean
+          reviewers: BenMMcLean

.pkl-version

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+0.25.3