feat(cloud-integrations): Add GCP and AWS cloud integrations

[abasha1234]

This PR will add Integrations GcpAiPlatform, AwsMsElasticache to Cloud Integration Resources

Ticket: NR-266295

Fixes # (issue)

Type of change

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• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Checklist:

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• [ ] My commit message follows conventional commits
• [ ] My code is formatted to Go standards
• [ ] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes. Go here for instructions on running tests locally.

How to test this change?

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[pranav-new-relic]

great job with this @abasha1234. Will shortly take a look at this PR.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 27.27273% with 32 lines in your changes are missing coverage. Please review.

Project coverage is 32.85%. Comparing base (92361de) to head (7890cb1). Report is 22 commits behind head on main.

Files	Patch %	Lines
...wrelic/resource_newrelic_cloud_gcp_integrations.go	27.27%	32 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2669 +/- ## ========================================== + Coverage 32.82% 32.85% +0.03% ========================================== Files 98 98 Lines 26884 27494 +610 ========================================== + Hits 8824 9034 +210 - Misses 17902 18299 +397 - Partials 158 161 +3 ```

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