chore(deps-dev): bump the dev-dependencies group with 3 updates (#340)

Bumps the dev-dependencies group with 3 updates: [@mrgrain/jsii-struct-builder](https://github.com/mrgrain/jsii-struct-builder), [jsii](https://github.com/aws/jsii-compiler) and [jsii-rosetta](https://github.com/aws/jsii-rosetta).


Updates `@mrgrain/jsii-struct-builder` from 0.7.19 to 0.7.20
- [Release notes](https://github.com/mrgrain/jsii-struct-builder/releases)
- [Commits](mrgrain/jsii-struct-builder@v0.7.19...v0.7.20)

Updates `jsii` from 5.3.29 to 5.3.31
- [Release notes](https://github.com/aws/jsii-compiler/releases)
- [Changelog](https://github.com/aws/jsii-compiler/blob/main/releases.json)
- [Commits](aws/jsii-compiler@v5.3.29...v5.3.31)

Updates `jsii-rosetta` from 5.3.29 to 5.3.31
- [Release notes](https://github.com/aws/jsii-rosetta/releases)
- [Changelog](https://github.com/aws/jsii-rosetta/blob/main/releases.json)
- [Commits](aws/jsii-rosetta@v5.3.29...v5.3.31)

---
updated-dependencies:
- dependency-name: "@mrgrain/jsii-struct-builder"
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: jsii
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: jsii-rosetta
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]