Mass update of docs and tests (credentials/session tokens) (ansible-c…

…ollections#1921)

Mass update of docs and tests (credentials/session tokens)

SUMMARY
We had a cleanup of credentials/session parameters which included a batch of deprecations and renames.
Ensure that all of our tests and docs are using the 'canonical' names
ISSUE TYPE

Docs Pull Request

COMPONENT NAME
plugins/modules/batch_compute_environment.py
plugins/modules/cloudformation_exports_info.py
plugins/modules/ec2_vpc_vpn.py
plugins/modules/elasticache.py
plugins/modules/elasticache_parameter_group.py
plugins/modules/elasticache_snapshot.py
plugins/modules/ses_rule_set.py
plugins/modules/sts_assume_role.py
plugins/modules/sts_session_token.py
tests/integration
ADDITIONAL INFORMATION
See also

ansible-collections/amazon.aws#1172
ansible-collections/amazon.aws#1714

Reviewed-by: Alina Buzachis

This commit was initially merged in https://github.com/ansible-collections/community.aws
See: ansible-collections@4a5b50e

tests/integration/targets/aws_region_info/tasks/main.yml

@@ -1,10 +1,10 @@
 ---
 - module_defaults:
     group/aws:
-      aws_access_key: '{{ aws_access_key | default(omit) }}'
-      aws_secret_key: '{{ aws_secret_key | default(omit) }}'
-      security_token: '{{ security_token | default(omit) }}'
-      region: '{{ aws_region | default(omit) }}'
+      access_key: '{{ aws_access_key }}'
+      secret_key: '{{ aws_secret_key }}'
+      session_token: '{{ security_token | default(omit) }}'
+      region: '{{ aws_region }}'
 
   block:
   - name: 'List available Regions'