Bump rustls-webpki from 0.100.1 to 0.100.2 in /tools/runtime-codegen

Bumps [rustls-webpki](https://github.com/rustls/webpki) from 0.100.1 to 0.100.2.
- [Release notes](https://github.com/rustls/webpki/releases)
- [Commits](https://github.com/rustls/webpki/compare/v/0.100.1...v/0.100.2)

---
updated-dependencies:
- dependency-name: rustls-webpki
  dependency-type: indirect
...

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