feat(ci): pr-build flag to build artifacts for a pr manually if needed

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

.github/workflows/prebuilt-pr.yml

@@ -1,13 +1,14 @@
-name: Build PR binaries
+name: Create PR artifacts
 
 on:
-  workflow_dispatch:
   pull_request:
+    types: [labeled]
     branches:
       - main
     paths-ignore:
       - "**/*.md"
       - "docs/**/*"
+  workflow_dispatch:
 
 env:
   BINARY_NAME: rustic-server
@@ -16,6 +17,7 @@ jobs:
   pr-build:
     name: Build PR on ${{ matrix.job.target }}
     runs-on: ${{ matrix.job.os }}
+    if: ${{ github.event.label.name == 'S-build' }}
     strategy:
       matrix:
         rust: [stable]
@@ -92,9 +94,29 @@ jobs:
           binary-name: ${{ env.BINARY_NAME }}
           package-secondary-name: ${{ matrix.job.target}}
           github-token: ${{ secrets.GITHUB_TOKEN }}
-          gpg-release-private-key: ${{ secrets.GPG_RELEASE_PRIVATE_KEY }}
-          gpg-passphrase: ${{ secrets.GPG_PASSPHRASE }}
           github-ref: ${{ github.ref }}
           sign-release: false
           hash-release: true
           use-project-version: false # not being used in rustic_server
+
+  remove-build-label:
+    name: Remove build label
+    needs: pr-build
+    permissions:
+      contents: read
+      issues: write
+      pull-requests: write
+    runs-on: ubuntu-latest
+    if: |
+      always() &&
+      ! contains(needs.*.result, 'skipped')
+    steps:
+      - name: Remove label
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh api \
+          --method DELETE \
+          -H "Accept: application/vnd.github+json" \
+          -H "X-GitHub-Api-Version: 2022-11-28" \
+          /repos/${{ github.repository }}/issues/${{ github.event.number }}/labels/S-build