Bump vscode-extension-tester from 8.3.0 to 8.3.1

Bumps [vscode-extension-tester](https://github.com/redhat-developer/vscode-extension-tester/tree/HEAD/packages/extester) from 8.3.0 to 8.3.1.
- [Release notes](https://github.com/redhat-developer/vscode-extension-tester/releases)
- [Commits](https://github.com/redhat-developer/vscode-extension-tester/commits/v8.3.1/packages/extester)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -468,7 +468,7 @@
     "mocha": "^10.5.2",
     "ts-loader": "^9.5.1",
     "typescript": "^5.5.2",
-    "vscode-extension-tester": "^8.3.0",
+    "vscode-extension-tester": "^8.3.1",
     "vscode-test": "^1.2.3",
     "webpack": "^5.90.3",
     "webpack-cli": "^5.1.4"