Fix Theia integration tests

[t1m0thyj]

Proposed changes

Fixes #2977 by updating element IDs in tests.

Also updates workflow to use new VSCE directory supported by Theia (see eclipse-theia/theia#13178).

Release Notes

Milestone:

Changelog:

Types of changes

• 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

This PR is probably a good candidate to be squash merged 😋

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.49%. Comparing base (eeb6c06) to head (08daa39).
Report is 2 commits behind head on maintenance.

Additional details and impacted files

@@             Coverage Diff              @@
##           maintenance    #2979   +/-   ##
============================================
  Coverage        93.49%   93.49%           
============================================
  Files              104      104           
  Lines            10845    10845           
  Branches          2262     2353   +91     
============================================
  Hits             10139    10139           
  Misses             705      705           
  Partials             1        1           

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[traeok]

Thanks for looking into this @t1m0thyj 😋 LGTM!

[JillieBeanSim]

LGTM! thanks @t1m0thyj