Update canonical/has-signed-canonical-cla action to v2 (#865)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/cla-check.yml

@@ -9,4 +9,4 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Check if Canonical's Contributor License Agreement has been signed
-        uses: canonical/has-signed-canonical-cla@v1
+        uses: canonical/has-signed-canonical-cla@v2