Make it possible to test push_screenshots with dispatch

Author: berland

.github/workflows/push_screenshots.yml

@@ -4,6 +4,11 @@ on:
   workflow_run:
     workflows: ["Screenshot tests"]
     types: [completed]
+  workflow_dispatch:
+    inputs:
+      run-id:
+        description: 'Run ID of a Screenshot tests workflow run to use as artifact source'
+        required: true
 
 permissions:
   contents: read
@@ -13,15 +18,15 @@ jobs:
   push-screenshots:
     name: Push updated screenshots to ert-testdata
     runs-on: ubuntu-latest
-    if: github.event.workflow_run.event == 'pull_request'
+    if: github.event_name == 'workflow_dispatch' || github.event.workflow_run.event == 'pull_request'
 
     steps:
     - name: Download screenshot artifact
       uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
       with:
         name: screenshot-results
         path: artifact
-        run-id: ${{ github.event.workflow_run.id }}
+        run-id: ${{ inputs.run-id || github.event.workflow_run.id }}
         github-token: ${{ secrets.GITHUB_TOKEN }}
 
     - name: Read metadata

.github/workflows/test_screenshots.yml

@@ -54,7 +54,7 @@ jobs:
       if: always()
       run: |
         mkdir -p artifact
-        echo '{"pr_number": ${{ github.event.number }}, "outcome": "${{ steps.screenshot-tests.outcome }}"}' > artifact/metadata.json
+        echo '{"pr_number": ${{ github.event.number || 0 }}, "outcome": "${{ steps.screenshot-tests.outcome }}"}' > artifact/metadata.json
         if [ -d updated-screenshots ]; then
           cp -r updated-screenshots artifact/
         fi