test/: PEP8 compliancy (#24803)

* test/: PEP8 compliancy

- Make PEP8 compliant

* Python3 chokes on casting int to bytes (#24952)

But if we tell the formatter that the var is a number, it works

test/integration/targets/async/library/async_test.py

@@ -1,7 +1,9 @@
-import sys
 import json
+import sys
+
 from ansible.module_utils.basic import AnsibleModule
 
+
 def main():
     if "--interactive" in sys.argv:
         import ansible.module_utils.basic
@@ -11,8 +13,9 @@ def main():
             )
         ))
 
-    module = AnsibleModule(argument_spec = dict(
-        fail_mode = dict(type='list', default=['success'])
+    module = AnsibleModule(
+        argument_spec=dict(
+            fail_mode=dict(type='list', default=['success'])
         )
     )