Fix split up actions (#141)

.github/workflows/automerge_dependabot.yml

@@ -2,7 +2,7 @@ name: Auto-merge Dependabot PRs
 
 on:
   workflow_run:
-    workflows: [ "OpenInv CI" ]
+    workflows: [ "Pull Request" ]
     types: [ completed ]
 
 jobs:
@@ -12,15 +12,44 @@ jobs:
       && github.event.workflow_run.conclusion == 'success'"
     runs-on: ubuntu-latest
     steps:
+      # Note: this is directly from GitHub's example for using data from a triggering workflow:
+      # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#using-data-from-the-triggering-workflow
+      - name: 'Download artifact'
+        uses: actions/github-script@v6
+        with:
+          script: |
+            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               run_id: context.payload.workflow_run.id,
+            });
+            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
+              return artifact.name == "pr_number"
+            })[0];
+            let download = await github.rest.actions.downloadArtifact({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               artifact_id: matchArtifact.id,
+               archive_format: 'zip',
+            });
+            let fs = require('fs');
+            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/pr_number.zip`, Buffer.from(download.data));
+
+      # This might be a useless use of cat, but I'm not sure what shell Actions is going to be running.
+      - name: Add Pull Number Variable
+        run: |-
+          unzip pr_number.zip
+          echo "PR_NUMBER=$(cat pr_number)" >> "$GITHUB_ENV"
+
       - name: Approve
         uses: hmarr/auto-approve-action@v3.2.1
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
-          pull-request-number: "${{ github.event.workflow_run.event.pull_request.id }}"
+          pull-request-number: "${{ env.PR_NUMBER }}"
       - name: Merge
         uses: pascalgn/automerge-action@v0.15.6
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
           MERGE_LABELS: "dependencies,java"
           MERGE_METHOD: "squash"
-          PULL_REQUEST: "${{ github.event.workflow_run.event.pull_request.id }}"
+          PULL_REQUEST: "${{ env.PR_NUMBER }}"