Bump on-headers, compression and express-session (GoogleCloudPlatform…

…#1565)

Bumps [on-headers](https://github.com/jshttp/on-headers), [compression](https://github.com/expressjs/compression) and [express-session](https://github.com/expressjs/session). These dependencies needed to be updated together.

Updates `on-headers` from 1.0.2 to 1.1.0
- [Release notes](https://github.com/jshttp/on-headers/releases)
- [Changelog](https://github.com/jshttp/on-headers/blob/master/HISTORY.md)
- [Commits](jshttp/on-headers@v1.0.2...v1.1.0)

Updates `compression` from 1.7.4 to 1.8.1
- [Release notes](https://github.com/expressjs/compression/releases)
- [Changelog](https://github.com/expressjs/compression/blob/master/HISTORY.md)
- [Commits](expressjs/compression@1.7.4...v1.8.1)

Updates `express-session` from 1.16.1 to 1.18.2
- [Release notes](https://github.com/expressjs/session/releases)
- [Changelog](https://github.com/expressjs/session/blob/master/HISTORY.md)
- [Commits](expressjs/session@v1.16.1...v1.18.2)

---
updated-dependencies:
- dependency-name: on-headers
  dependency-version: 1.1.0
  dependency-type: indirect
- dependency-name: compression
  dependency-version: 1.8.1
  dependency-type: indirect
- dependency-name: express-session
  dependency-version: 1.18.2
  dependency-type: indirect
...

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