Bump jsonpath-plus and @microsoft/sp-build-web

Bumps [jsonpath-plus](https://github.com/s3u/JSONPath) to 10.3.0 and updates ancestor dependency [@microsoft/sp-build-web](http://aka.ms/spfx). These dependencies need to be updated together.


Updates `jsonpath-plus` from 4.0.0 to 10.3.0
- [Release notes](https://github.com/s3u/JSONPath/releases)
- [Changelog](https://github.com/JSONPath-Plus/JSONPath/blob/main/CHANGES.md)
- [Commits](JSONPath-Plus/JSONPath@v4.0.0...v10.3.0)

Updates `@microsoft/sp-build-web` from 1.20.2 to 1.21.1

---
updated-dependencies:
- dependency-name: jsonpath-plus
  dependency-version: 10.3.0
  dependency-type: indirect
- dependency-name: "@microsoft/sp-build-web"
  dependency-version: 1.21.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]