chore(deps): bump the cargo group across 4 directories with 2 updates

Bumps the cargo group with 1 update in the /starters/lightweight-service directory: [anstream](https://github.com/rust-cli/anstyle).
Bumps the cargo group with 2 updates in the /starters/rest-api directory: [anstream](https://github.com/rust-cli/anstyle) and [rsa](https://github.com/RustCrypto/RSA).
Bumps the cargo group with 2 updates in the /starters/saas directory: [anstream](https://github.com/rust-cli/anstyle) and [rsa](https://github.com/RustCrypto/RSA).
Bumps the cargo group with 1 update in the /xtask directory: [anstream](https://github.com/rust-cli/anstyle).


Updates `anstream` from 0.6.14 to 0.6.18
- [Commits](rust-cli/anstyle@anstream-v0.6.14...anstream-v0.6.18)

Updates `anstream` from 0.6.14 to 0.6.18
- [Commits](rust-cli/anstyle@anstream-v0.6.14...anstream-v0.6.18)

Updates `rsa` from 0.9.6 to 0.9.7
- [Changelog](https://github.com/RustCrypto/RSA/blob/v0.9.7/CHANGELOG.md)
- [Commits](RustCrypto/RSA@v0.9.6...v0.9.7)

Updates `anstream` from 0.6.14 to 0.6.18
- [Commits](rust-cli/anstyle@anstream-v0.6.14...anstream-v0.6.18)

Updates `rsa` from 0.9.6 to 0.9.7
- [Changelog](https://github.com/RustCrypto/RSA/blob/v0.9.7/CHANGELOG.md)
- [Commits](RustCrypto/RSA@v0.9.6...v0.9.7)

Updates `anstream` from 0.6.4 to 0.6.15
- [Commits](rust-cli/anstyle@anstream-v0.6.14...anstream-v0.6.18)

---
updated-dependencies:
- dependency-name: anstream
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: anstream
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: rsa
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: anstream
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: rsa
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: anstream
  dependency-type: indirect
  dependency-group: cargo
...

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