Modules metadata: fix invalid GitHub ID in author field (#31856)

* Replace Twitter username with GitHub ID

See 8bfa19c4af

* Replace Twitter username with GitHub ID

See 22766906b0

* Fix GitHub ID: add missing letters

See:
- nxos_banner.py: 9c6ee8d0bb
- nxos_logging.py: e37e736ddb
- net_user.py: f6a4803669

* Remove nonexistent author, use GitHub organization

See https://github.com/ansible/ansible-modules-core/pull/2880

Not sure how Ansibullbot will handle an organization ID, but
other deprecated modules already use it.

* Replace Twitter username with GitHub ID

* Replace Twitter username with GitHub ID

See bf59d1cc1e

* Replace Twitter username with GitHub ID

See d02a9016a2

* Author: use GitHub ID

See 0847bfecd672f6b2e0e4429e998df7c6e7042b1c

* Replace Twitter username with GitHub ID

See a59684fddd

* Replace Twitter username with GitHub ID

See 94f9bb962f

* Replace Twitter username with GitHub ID

See 40b7dffea8

lib/ansible/modules/cloud/atomic/atomic_container.py

@@ -21,7 +21,7 @@ description:
     - Manage the containers on the atomic host platform
     - Allows to manage the lifecycle of a container on the atomic host platform
 version_added: "2.4"
-author: "Giuseppe Scrivano @gscrivano"
+author: "Giuseppe Scrivano (@giuseppe)"
 notes:
     - Host should support C(atomic) command
 requirements:

lib/ansible/modules/cloud/azure/azure_rm_loadbalancer.py

@@ -143,7 +143,7 @@ extends_documentation_fragment:
     - azure_tags
 
 author:
-    - "Thomas Stringer (@tr_stringer)"
+    - "Thomas Stringer (@tstringer)"
 '''
 
 EXAMPLES = '''

lib/ansible/modules/cloud/azure/azure_rm_virtualmachine_extension.py

@@ -81,7 +81,7 @@ extends_documentation_fragment:
 
 author:
     - "Sertac Ozercan (@sozercan)"
-    - "Julien Stroheker (@ju_stroh)"
+    - "Julien Stroheker (@julienstroheker)"
 '''
 
 EXAMPLES = '''

lib/ansible/modules/cloud/digital_ocean/digital_ocean_floating_ip.py

@@ -19,7 +19,7 @@ short_description: Manage DigitalOcean Floating IPs
 description:
      - Create/delete/assign a floating IP.
 version_added: "2.4"
-author: "Patrick Marques (@patrickfmarques)"
+author: "Patrick Marques (@pmarques)"
 options:
   state:
     description: