build(deps-dev): bump stylelint and stylelint-config-standard in /vnext

Bumps [stylelint](https://github.com/stylelint/stylelint) and [stylelint-config-standard](https://github.com/stylelint/stylelint-config-standard). These dependencies needed to be updated together.

Updates `stylelint` from 14.16.1 to 15.0.0
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](https://github.com/stylelint/stylelint/compare/14.16.1...15.0.0)

Updates `stylelint-config-standard` from 29.0.0 to 30.0.1
- [Release notes](https://github.com/stylelint/stylelint-config-standard/releases)
- [Changelog](https://github.com/stylelint/stylelint-config-standard/blob/main/CHANGELOG.md)
- [Commits](https://github.com/stylelint/stylelint-config-standard/compare/29.0.0...30.0.1)

---
updated-dependencies:
- dependency-name: stylelint
  dependency-type: direct:development
  update-type: version-update:semver-major
- dependency-name: stylelint-config-standard
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

1 files changed, 2 insertions, 2 deletions

diff --git a/vnext/package.json b/vnext/package.json
index 4c803de3..246b0b71 100644
--- a/vnext/package.json
+++ b/vnext/package.json
@@ -45,8 +45,8 @@
     "postcss-preset-env": "^8.0.1",
     "postcss-url": "^10.1.3",
     "react-test-renderer": "^18.2.0",
-    "stylelint": "^14.16.1",
-    "stylelint-config-standard": "^29.0.0"
+    "stylelint": "^15.0.0",
+    "stylelint-config-standard": "^30.0.1"
   },
   "dependencies": {
     "axios": "^1.3.2",