Bump vscode-extension-tester from 8.7.0 to 8.8.0

Bumps [vscode-extension-tester](https://github.com/redhat-developer/vscode-extension-tester/tree/HEAD/packages/extester) from 8.7.0 to 8.8.0.
- [Release notes](https://github.com/redhat-developer/vscode-extension-tester/releases)
- [Commits](https://github.com/redhat-developer/vscode-extension-tester/commits/v8.8.0/packages/extester)

---
updated-dependencies:
- dependency-name: vscode-extension-tester
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -184,7 +184,7 @@
 		"survey-core": "^1.12.6",
 		"survey-react-ui": "^1.12.6",
 		"typescript": "^5.6.3",
-		"vscode-extension-tester": "^8.7.0",
+		"vscode-extension-tester": "^8.8.0",
 		"xterm-addon-fit": "^0.8.0",
 		"xterm-addon-web-links": "^0.9.0",
 		"xterm-addon-webgl": "^0.16.0"