Use knapsack to parallelize E2E tests run via package-and-qa

What does this MR do?

This change will commit manually-generated knapsack reports for the larger jobs in package-and-qa. Specifically, those that include most of the tests:

• ce-instance
• ce-relative_url
• ce-update

The rest of the jobs include too few tests to be worthwhile using knapsack because starting the GitLab container in each job takes a large part of the total runtime. And the slowest job overall, {ce|ee}:kubernetes only has one test.

• See: https://gitlab.com/gitlab-org/gitlab-ce/issues/64953
• EE MR: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/14755
• gitlab-qa MR: gitlab-qa!262 (merged)

Part of &1276

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry for user-facing changes, or community contribution. Check the link for other scenarios.
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Performance and testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team