try wrapping whole expression

Author: dminnear-rh

.github/workflows/ci-pipeline.yaml

@@ -59,7 +59,7 @@ jobs:
 
     steps:
       - name: Check MSSQL test availability
-        if: matrix.db == 'mssql' && secrets.MSSQL_VECTOR_PASSWORD == ''
+        if: ${{ matrix.db == 'mssql' && secrets.MSSQL_VECTOR_PASSWORD != '' }}
         run: |
           echo "Skipping MSSQL test: required secrets are missing."
           exit 78