build(deps): Bump vscode-extension-tester from 8.4.0 to 8.5.0 (#336)

Bumps [vscode-extension-tester](https://github.com/redhat-developer/vscode-extension-tester/tree/HEAD/packages/extester) from 8.4.0 to 8.5.0.
- [Release notes](https://github.com/redhat-developer/vscode-extension-tester/releases)
- [Commits](https://github.com/redhat-developer/vscode-extension-tester/commits/v8.5.0/packages/extester)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -47,7 +47,7 @@
 		"fs-extra": "^11.2.0",
 		"sanitize-filename": "^1.6.3",
 		"tree-kill": "^1.2.2",
-		"vscode-extension-tester": "^8.4.0"
+		"vscode-extension-tester": "^8.5.0"
 	},
 	"devDependencies": {
 		"@stylistic/eslint-plugin": "^2.4.0",