workflows: Tweak conformance step name

Signed-off-by: Jussi Kukkonen <jkukkonen@google.com>

Author: jku

.github/workflows/conformance.yml

@@ -7,7 +7,7 @@ jobs:
   conformance:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout the client wrapper
+      - name: Checkout conformance client
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
 
       - name: Run test suite