TPT-4443: Fix flaky tests

[mawilk90]

📝 Description

Failing regression fixes

✔️ How to Test

make test-int TEST_SUITE=linode_client TEST_ARGS="-k 'fails_to_create_domain or image_create or fails_to_create_image or fails_to_delete_predef or get_volume or create_tag or get_account'"

make test-int TEST_SUITE=domain

make test-int TEST_SUITE=placement

make test-int TEST_SUITE=linode TEST_CASE=test_linode_rebuild

make test-int TEST_SUITE=account TEST_CASE=test_latest_get_event

[Copilot]

Pull request overview

This PR updates several integration tests to reduce flakiness by increasing polling timeouts and adding/standardizing explicit waits around eventually-consistent API behaviors (e.g., resource readiness and tag visibility).

Changes:

• Increased timeouts/intervals in multiple integration tests to better accommodate slower provisioning/migrations.
• Replaced ad-hoc try/except assertions with pytest.raises for clearer, more consistent failure expectations.
• Added targeted readiness polling (e.g., domain/volume “active”, Linode disks ready, tag creation visible) to reduce race conditions.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
test/integration/models/placement/test_placement.py	Increased migration request timeout to reduce flakiness.
test/integration/models/linode/test_linode.py	Increased rebuild “running” wait timeout.
test/integration/models/domain/test_domain.py	Increased post-clone sleep (but still uses fixed sleep).
test/integration/models/account/test_account.py	Increased wait parameters before reading latest events.
test/integration/linode_client/test_linode_client.py	Added wait_for_condition-based polling for disk/tag readiness; standardized error assertions with pytest.raises.
test/integration/conftest.py	Added waits to ensure created domain/volume reach “active” before use.

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