fix ansible-lint errors in playbooks directory

[aida-shumburo]

SUMMARY

This PR is to fix eorrors that are currently providing incorrect examples of playbooks for customers.

ISSUE TYPE

• Docs Pull Request

OUTPUT

Checklist:

• I have performed a self-review of my own code to ensure there are no formatting, linting, or security issues
• I have verified that new and existing unit tests pass locally with my changes
• I have not allowed coverage numbers to degenerate
• I have maintained at least 90% code coverage
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have maintained backward compatibility or have provided any relevant "breaking_changes" descriptions in a "fragment" file in the "changelogs/fragments" directory of this repository.
• I have provided a summary for this PR in valid "fragment" file format in the "changelogs/fragments" directory of this repository branch. Reference : Ansible Change Log Document

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration

• Ran 'ansible-lint playbooks/bgp_l3_fabric' to run ansible-lint on the files within the playbooks/bgp_l3_fabric directory.

[awhaley-dell]

All of the changes look good except for the removal of the collections module. I have concerns about the module paths that are recommended in place of the simple collections technique.

[ArunSaravananBalachandran]

For uniformity, the indentation level used in the playbook 'clos-fabric.yaml' (2 spaces) can be used in the vars and inventory files.

[awhaley-dell]

Found 1 indentation error that needs to be addressed before approval

[ArunSaravananBalachandran]

Suggested change

	peer_type: external
	peer_type: external