Decouple release workflow from test execution

[Copilot]

The release workflow was blocking on test completion via a needs dependency, coupling two independent concerns.

Changes

Split workflows:

• Extracted all test jobs (tests-integration-img, tests-integration, tests-unit) into new tests.yml workflow
• Removed test jobs and needs dependency from release.yml

Behavior:
Both workflows now trigger independently on tag push and run in parallel. Release no longer waits for test completion.

# Before: release.yml
release:
  needs: [ "tests-integration-img", "tests-integration", "tests-unit" ]
  
# After: release.yml  
release:
  # No dependencies - runs immediately on tag push

Original prompt

Lets remove in the github workflow the dependency of the release job from the tests. Lets have two separate workflows, one for releasing and other for running the tests

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