Release v1.17.3

[NSeydoux]

This PR bumps the version to 1.17.3.

Release Steps

1. Look at the CHANGELOG.md to determine whether the release should be a major, minor, or patch release. Coordinate with the team to ensure the next version is agreed upon.
2. Run npm run lerna-version -- <major|minor|patch> with the decided on version.
3. Update the CHANGELOG.md to release the latest the version, and set the release date.
4. Commit the changes on a release/vX.Y.Z branch
5. Push to GitHub, create a PR, and merge once CI passes.
6. Create a release on GitHub for the new version, using a combination of the release notes from the CHANGELOG.md and the automatically generated changes.