[Github] Fix triggers formatting in code format action

A recent comment modified the job to only run on the main branch, but
the formatting was slightly off, causing the job to not run. This patch
fixes the formatting so the job will run as expected.

(cherry picked from commit 4b34558)

Author: boomanaiden154

.github/workflows/pr-code-format.yml

@@ -1,7 +1,8 @@
 name: "Check code formatting"
-on: pull_request_target
-  branches:
-    - main
+on:
+  pull_request_target:
+    branches:
+      - main
 
 permissions:
   pull-requests: write