luks_device: ansibot wasn't able to extract author (#62464)

Ansibullbot ignores lines without 'author' or dash [1].

The following command allows to check that no other module is impacted:

    rgrep -A1 -P "^author:[[:space:]]*$" lib/ansible/modules/ |grep -P "\.py-[[:space:]]*[^-][[:space:]A-Za-z\"'@()]+$" -B1

Related: https://github.com/ansible/ansibullbot/issues/1106.

[1] 02ae638641/ansibullbot/utils/moduletools.py (L828)

lib/ansible/modules/crypto/luks_device.py

@@ -132,8 +132,7 @@ requirements:
     - "lsblk"
     - "blkid (when I(label) or I(uuid) options are used)"
 
-author:
-    "Jan Pokorny (@japokorn)"
+author: Jan Pokorny (@japokorn)
 '''
 
 EXAMPLES = '''