ci: escape backslashes in yml

.github/workflows/auto-labeler.yml

@@ -1,12 +1,13 @@
 name: 'Issue/PR Labeler'
 on:
-  pull_request_target:
+  pull_request:
   issues:
     types:
       - opened
       - edited
 jobs:
   triage:
+    name: Triage
     runs-on: ubuntu-latest
     steps:
       - name: Automatically label Issues/PRs

.github/workflows/labelsync.yml

@@ -9,8 +9,8 @@ on:
     paths:
       - '.github/labels.yml'
 jobs:
-  labeler:
-    name: Labeler
+  labelsync:
+    name: Label sync
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository