GitHub action to update Spin CLI reference

Signed-off-by: itowlson <[email protected]>

Author: itowlson

.github/workflows/update-cli-reference.yml

@@ -0,0 +1,55 @@
+name: Bump Spin
+
+on:
+  workflow_dispatch:
+  # repository_dispatch:
+  #   types:
+  #     - spin-release
+
+jobs:
+  create-pr:
+    name: Create PR with CLI reference bumped
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download Spin
+        uses: fermyon/actions/spin/setup@v1
+        version: canary # for testing
+
+      - name: Create CLI reference front matter
+        run: |
+          cat >./content/v3/cli-reference.md << EOF
+          title = "Command Line Reference"
+          template = "main"
+          date = "2025-01-01T00:00:01Z"
+          [extra]
+          url = "https://github.com/spinframework/spin-docs/blob/main/content/v3/cli-reference.md"
+
+          ---
+          EOF
+
+      - name: Generate reference doc
+        run: ./spin maintenance generate-reference >>cli-reference.md
+
+      - name: Import GPG key
+        uses: crazy-max/ghaction-import-gpg@v6
+        with:
+          gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
+          passphrase: ${{ secrets.PASSPHRASE }}
+          git_user_signingkey: true
+          git_commit_gpgsign: true
+
+      - name: Create pull request
+        uses: peter-evans/create-pull-request@v7
+        with:
+          commit-message: "Update Spin CLI reference to latest"
+          title: "Update Spin CLI reference to latest"
+          body: "Update Spin CLI reference to latest"
+          branch: bump-spin-cli-reference
+          base: main
+          delete-branch: true
+          committer: spinframeworkbot <[email protected]>
+          author: spinframeworkbot <[email protected]>
+          signoff: true
+          token: ${{ secrets.PAT }}