python-awscli: fix stale assertion in test.sh

awscli 1.45.19 no longer exposes awscli.topics.TOPIC_TAGS, so the test
raised an AssertionError (silently, as the heredoc exit code was ignored).
Drop the brittle check and make the smoke test fail hard if the CLI driver
cannot be created.

Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>

lang/python/python-awscli/test.sh

@@ -2,16 +2,12 @@
 
 [ "$1" = python3-awscli ] || exit 0
 
-python3 - << 'EOF'
+python3 - << 'EOF' || exit 1
 from awscli.clidriver import create_clidriver
 
-# Verify CLI driver can be created
+# Verify the CLI driver can be created
 driver = create_clidriver()
 assert driver is not None
-
-# Verify help text is available for s3 command
-import awscli.topics
-assert hasattr(awscli.topics, "TOPIC_TAGS")
 EOF
 
 # Verify the aws binary runs --version