fix(template): Checkout git submodules. Needed by secret and listener operators.

Author: NickLarsenNZ

template/.github/workflows/pr_pre-commit.yaml.j2

@@ -16,6 +16,7 @@ jobs:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
         with:
           fetch-depth: 0
+          submodules: recursive
       - uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5.2.0
         with:
           python-version: '3.12'