WIP: tests(integration): Move integration tests to tests/

[Bhargav-InfraCloud]

Description

Move integration tests to tests/.

Fixes #297

How Has This Been Tested?

Run the following commands and check if running successful:

# This should print all the tests related commands under a separate heading
make help

# Individual types of tests
make test-unit
make test-coverage
make test-integration

# These should run all the above tests
make test
make test-docker

Checklist:

• The title of the PR states what changed and the related issues number (used for the release note).
• Does this PR requires documentation updates?
• I've updated documentation as required by this PR.
• I have ran go fmt
• I have updated the helm chart as required by this PR.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have tested it for all user roles.
• I have added all the required unit test cases.
• I have verified the E2E test cases with new code changes.
• I have added all the required E2E test cases.

Does this PR introduce a breaking change?