Change pull_request_target to pull_request in workflow

Author: anaik91

.github/workflows/tests.yml

@@ -21,7 +21,7 @@ on:  # yamllint disable-line rule:truthy
       - main
     paths-ignore:
       - '**.md'
-  pull_request_target:
+  pull_request:
     paths-ignore:
       - '**.md'
     branches: