Enable FUSE in CI.

Author: gsergey418

.github/workflows/sharness.yml

@@ -46,7 +46,7 @@ jobs:
         env:
           TEST_DOCKER: 1
           TEST_PLUGIN: 0
-          TEST_FUSE: 0
+          TEST_FUSE: 1
           TEST_VERBOSE: 1
           TEST_JUNIT: 1
           TEST_EXPENSIVE: 1