Bump tslib from 2.6.1 to 2.6.2 (#56)

Bumps [tslib](https://github.com/Microsoft/tslib) from 2.6.1 to 2.6.2.
- [Release notes](https://github.com/Microsoft/tslib/releases)
- [Commits](microsoft/tslib@v2.6.1...v2.6.2)

---
updated-dependencies:
- dependency-name: tslib
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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