[infra] Consolidate auto-tag and check-title GH actions (#32824)

These need to run at about the same times, and each runs quickly.
Doesn't seem worthwhile to fire up a VM for each of them individually.




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.github/workflows/pr-auto-tag-and-check-title.yaml

@@ -1,4 +1,4 @@
-name: PR AutoTag
+name: PR Title Check & Tag
 on:
   pull_request_target:
     types: [opened, reopened, synchronized, edited]
@@ -17,3 +17,16 @@ jobs:
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"
         sync-labels: ""
+
+  title-check:
+    permissions:
+      contents: read
+      pull-requests: write
+
+    runs-on: ubuntu-latest
+    steps:
+    - uses: thehanimo/pr-title-checker@v1.3.5
+      with:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        pass_on_octokit_error: false
+        configuration_path: ".github/pr_title_checker_config.json"

.github/workflows/pr-check-title.yaml

@@ -1,21 +0,0 @@
-name: PR CheckTitle
-on:
-  pull_request_target:
-    types: [opened, reopened, synchronized, edited, labeled, unlabeled]
-  workflow_dispatch:
-permissions:
-  contents: read
-
-jobs:
-  title-check:
-    permissions:
-      contents: read
-      pull-requests: write
-
-    runs-on: ubuntu-latest
-    steps:
-    - uses: thehanimo/pr-title-checker@v1.3.5
-      with:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        pass_on_octokit_error: false
-        configuration_path: ".github/pr_title_checker_config.json"