update test suite version

Author: ylebre

.github/workflows/ci.yml

@@ -88,7 +88,7 @@ jobs:
         test:
           - 'solidtestsuite/solid-crud-tests:v7.0.5'
           - 'solidtestsuite/web-access-control-tests:v7.1.0'
-          - 'solidtestsuite/webid-provider-tests:v2.1.0'
+          - 'solidtestsuite/webid-provider-tests:v2.1.1'
 
     # Prevent EOL or non-stable versions of Nextcloud to fail the test-suite
     continue-on-error: ${{ contains(fromJson('[28,29,30]'), matrix.nextcloud_version) == false }}