CI: Include FutureWarning from numpy in npdev build (#48041)

Author: mroeschke

.github/workflows/ubuntu.yml

@@ -64,7 +64,7 @@ jobs:
             env_file: actions-310-numpydev.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_testing_mode: "deprecate"
-            test_args: "-W error::DeprecationWarning:numpy"
+            test_args: "-W error::DeprecationWarning:numpy -W error::FutureWarning:numpy"
         exclude:
           - env_file: actions-39.yaml
             pyarrow_version: "6"