Add redis ID to ignore vulnerability list in pip-audit

This changeset adds a Python vulnerability that we need to ignore because it was incorrectly applied to the Python Redis module.  This is a vulnerability with an older version of Redis itself, not the Python module.

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

.github/workflows/checks.yml

@@ -90,6 +90,8 @@ jobs:
       - uses: pypa/gh-action-pip-audit@v1.0.8
         with:
           inputs: requirements.txt
+          ignore-vulns: |
+            PYSEC-2022-43162
 
   static-scan:
     runs-on: ubuntu-latest