Always cleanup cloud indexes from tests

[vicilliar]

• Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes/features)
• Docs have been added / updated (for bug fixes / features)

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
  Bug fix

• What is the current behavior? (You can also link to an open issue here)
  When cloud integration test run is cancelled, indexes are not cleaned up.

• What is the new behavior (if this is a feature change)?

Several test quality of life updates:
-Concurrency control. Only 1 pipeline can run at a time. Prevents overlapping indexes.
-Use last 4 digits of github run ID for test unique identifier (instead of UUID) so it can be shared between jobs.
-Run cleanup_indexes regardless of outcome of integration test.
-delete indexes script now always has wait_for_readiness=True
-Remove wait_for_readiness in the cleanup section of the run_integration_tests job. This is because cleanup_indexes job will always run and wait til completion. Also so the deletion time is not recorded in the test run section.
-wait_for_readiness loop now also waits for CREATING, MODIFYING, DELETING indexes, then sends a new delete request when they are READY or FAILED.
-Add timeouts for workflow: 1 hour for github workflow, 45 minutes for python tests.

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)
  No

• Other information:

[vicilliar]

Proof that script will only clean up associated indexes (for this run).

• Only 2 indexes are attempting to be deleted, even if 7 are present in the account.
• Constantly waits for indexes to be READY or FAILED before sending delete request again. 30s sleep confirmed.
• Run seen here: https://github.com/marqo-ai/py-marqo/actions/runs/10917291511/job/30300318636

[vicilliar]

Test Case:

• 1 smooth successful run, with cleanup
  

• Test runs succeed, and cleanup indexes happens in another job. Works as intended. No timeout is hit.
  https://github.com/marqo-ai/py-marqo/actions/runs/10952799139/job/30412029355