chore: update .gitignore

[cuining]

Checklist

• updated CHANGELOG.md

out* will cause these below files to be ignored:

lib/vscode/src/vs/editor/contrib/documentSymbols/outlineModel.ts
lib/vscode/src/vs/editor/contrib/documentSymbols/test/
lib/vscode/src/vs/workbench/contrib/codeEditor/browser/outline/ lib/vscode/src/vs/workbench/contrib/notebook/browser/contrib/outline/
lib/vscode/src/vs/workbench/contrib/notebook/browser/view/output/
lib/vscode/src/vs/workbench/contrib/outline/
lib/vscode/src/vs/workbench/contrib/output/
lib/vscode/src/vs/workbench/services/outline/
lib/vscode/src/vs/workbench/services/output/

[repo-ranger]

Thanks for making your first contribution! 🙂

[jsjoeio]

Wow, nice catch. Thanks so much for the PR @cuining!

RE: updated CHANGELOG.md

Totally optional but if you want to add this to the CHANGELOG.md then we'll credit you in the release notes for the next release!

[codecov]

Codecov Report

Merging #3557 (eadd194) into main (ecbef27) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #3557   +/-   ##
=======================================
  Coverage   59.21%   59.21%           
=======================================
  Files          35       35           
  Lines        1709     1709           
  Branches      379      379           
=======================================
  Hits         1012     1012           
  Misses        559      559           
  Partials      138      138           

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