Fix flaky integration tests and error handling for invalid team config

[t1m0thyj]

Proposed changes

Fix transient errors in integration tests, and upload test results in CI even when tests fail to make debugging easier.

The tests passed 10 times in a row in this workflow: https://github.com/zowe/zowe-explorer-vscode/actions/runs/11923838338/job/33234787006

Also fixes error handling for an invalid team config file when ZE initializes, which was uncovered by fixing tests. In v3.0.3 the error notification was shown twice, and in the main branch ZE was failing to activate.

Release Notes

Milestone: 3.1.0

Changelog: Fixed an issue during initialization where the error dialog shown for a broken team configuration file was missing the "Show Config" action

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] Enhancement (non-breaking change which adds or improves functionality)
• [ ] Breaking change (a change that would cause existing functionality to not work as expected)
• [ ] Documentation (Markdown, README updates)
• [ ] Other (please specify above in "Proposed changes" section)

Checklist

General

• [ ] I have read the CONTRIBUTOR GUIDANCE wiki
• [ ] All PR dependencies have been merged and published (if applicable)
• [ ] A GIF or screenshot is included in the PR for visual changes
• [ ] The pre-publish command has been executed:
  • v2 and below: yarn workspace vscode-extension-for-zowe vscode:prepublish
  • v3: pnpm --filter vscode-extension-for-zowe vscode:prepublish

Code coverage

• [ ] There is coverage for the code that I have added
• [ ] I have added new test cases and they are passing
• [ ] I have manually tested the changes

Deployment

• [ ] I have added developer documentation (if applicable)
• [ ] Documentation should be added to Zowe Docs
  • If you're an outside contributor, please post in the #zowe-doc Slack channel to coordinate documentation.
  • Otherwise, please check with the rest of the squad about any needed documentation before merging.
• [ ] These changes may need ported to the appropriate branches (list here):

Further comments

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 93.02%. Comparing base (57db6f3) to head (86a1b4e). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #3322 +/- ## ========================================== + Coverage 92.99% 93.02% +0.03% ========================================== Files 116 116 Lines 12046 12046 Branches 2656 2773 +117 ========================================== + Hits 11202 11206 +4 + Misses 842 839 -3 + Partials 2 1 -1 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

---

🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles

[github-actions[bot]]

📅 Suggested merge-by date: 12/4/2024

[t1m0thyj]

There is another integration test (UpdateCredentials.feature) that has frequent transient failures, marking as draft until this one is fixed.