Improve verification build

[NipunaRanasinghe]

Purpose

This PR

• improves the plugin verification workflow to directly run intellij plugin verifier task
• incorporate caching action to improve the build time

Fixes #

Approach

Describe how you are implementing the solutions along with the design details.

Samples

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Remarks

List any other known issues, related PRs, TODO items, or any other notes related to the PR.

Check List

• Read the Contributing Guide
• Added/updated necessary documentation
• Checked Tooling Support
• Added necessary tests
  • Unit Tests
  • Integration Tests
• Increased Test Coverage