ci: remove unnecessary pull_request_target

Signed-off-by: Alexis Asseman <[email protected]>

Author: aasseman

.github/workflows/conventional_commits.yml

@@ -1,11 +1,7 @@
 name: "Lint PR"
 
 on:
-  pull_request_target:
-    types:
-      - opened
-      - edited
-      - synchronize
+  pull_request:
 
 jobs:
   conventional-commits-check:

.github/workflows/dco_check.yml

@@ -1,11 +1,7 @@
 name: "Lint PR"
 
 on:
-  pull_request_target:
-    types:
-      - opened
-      - edited
-      - synchronize
+  pull_request:
 
 jobs:
   # https://github.com/cncf/dcochecker