Update test workflow for app_version variable (#2795)

vscode_version was renamed to app_version, but some of the if checks
were not updated

## Checklist

- [ ] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [ ] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [ ] I have not broken the cheatsheet

Co-authored-by: Phil Cohen <phillip@phillip.io>

.github/workflows/test.yml

@@ -49,13 +49,13 @@ jobs:
       - run: pnpm --color test
         if: runner.os != 'Linux'
       - run: xvfb-run -a pnpm -F @cursorless/test-harness test:talonJs
-        if: runner.os == 'Linux' && matrix.vscode_version == 'stable'
+        if: runner.os == 'Linux' && matrix.app_version == 'stable'
       - run: pnpm -F @cursorless/test-harness test:talonJs
-        if: runner.os != 'Linux' && matrix.vscode_version == 'stable'
+        if: runner.os != 'Linux' && matrix.app_version == 'stable'
       - run: xvfb-run -a pnpm -F @cursorless/cursorless-everywhere-talon-e2e test:quickjs
-        if: runner.os == 'Linux' && matrix.vscode_version == 'stable'
+        if: runner.os == 'Linux' && matrix.app_version == 'stable'
       - run: pnpm -F @cursorless/cursorless-everywhere-talon-e2e test:quickjs
-        if: runner.os != 'Linux' && matrix.vscode_version == 'stable'
+        if: runner.os != 'Linux' && matrix.app_version == 'stable'
       - run: bash -x scripts/install-neovim-dependencies.sh
       - uses: rhysd/action-setup-vim@v1
         id: vim