style(ci): normalize workflow block spacing

.github/workflows/ci.yaml

@@ -1,5 +1,4 @@
 name: CI
-
 on:
   pull_request:
     branches: [main]

.github/workflows/dependency-review.yml

@@ -1,5 +1,4 @@
 name: Dependency Review
-
 on:
   pull_request:
 

.github/workflows/labeler.yml

@@ -1,5 +1,4 @@
 name: Labeler
-
 on:
   pull_request:
     branches: [main]
@@ -7,6 +6,7 @@ on:
 # All three grants are required: reusable-workflow permissions can only be
 # downgraded by the caller, so omitting one (e.g. issues: write, needed to create
 # a label that does not exist yet) causes a silent startup_failure.
+
 permissions:
   contents: read
   pull-requests: write