Code Cleanup - Disabled CI Removal and tests workflow refactor

[nickbhasin]

Description

• What is being changed?
  Code Cleanup - Disabled CI Removal and tests workflow refactor to make in align with other ansible collections
  Renames integration tests files like single.yaml to downstream.yaml.
• Why is this change needed?
  Unnecessary skipped runs during tests.yml workflow run
• How does this change address the issue?
  It removes the 'if conditions' and streamlines everything to pull_request_target

Type of Change

• [] CI maintenance
• [] Workflow maintenance

Related Issue

• Fixes Unnecessary skipped runs during tests.yml workflow run
• Related to #

Component Name

workflows/tests.yml
workflows/codecoverage.yml
tests/integration

Self-Review Checklist

• I have performed a self-review of my code
• I have added relevant comments to complex code sections
• I have removed all commented code (no commented code should be merged)
• I have updated documentation where needed
• I have considered the security impact of these changes
• I have considered performance implications
• I have thought about error handling and edge cases
• I have tested the changes in my local environment
• I have verified the changes work with the target EOS version(s)
• I have reviewed the acceptance criteria for related tickets

Testing Instructions

Prerequisites

• EOS Version:
• Hardware Platform (if applicable):
• Test Topology:

Steps to Test

1. Create/Merge any PR and check if any runs are getting skipped.

Expected Results

Test Results

Acceptance Criteria Verification

• All acceptance criteria have been reviewed and verified
• Acceptance criteria checklist:
  • [ ]
  • [ ]
  • [ ]

Additional Context

Command Output / Logs

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Required Actions

• Requires documentation updates
• Requires changelog fragment
• Requires integration test updates
• Requires unit test updates
• Requires coordination with other teams
• Blocked by PR/MR: #XXX

Screenshots/Logs

Breaking Changes