Lock pre-commit version

Signed-off-by: Pedro Algarvio <palgarvio@vmware.com>

.github/workflows/pre-commit-action.yml

@@ -8,6 +8,8 @@ on:
         type: string
         description: JSON string containing information about changed files
 
+env:
+  PRE_COMMIT_VERSION: "2.21.0"
 
 jobs:
   Pre-Commit:
@@ -34,8 +36,7 @@ jobs:
           PIP_INDEX_URL: https://pypi-proxy.saltstack.net/root/local/+simple/
           PIP_EXTRA_INDEX_URL: https://pypi.org/simple
         run: |
-          python -m pip install --upgrade pip
-          pip install pre-commit
+          pip install wheel pre-commit==${PRE_COMMIT_VERSION}
           pre-commit install --install-hooks
 
       - name: Check ALL Files On Branch