Bump doctrine/deprecations from 1.1.5 to 1.1.6

Bumps [doctrine/deprecations](https://github.com/doctrine/deprecations) from 1.1.5 to 1.1.6.
- [Release notes](https://github.com/doctrine/deprecations/releases)
- [Commits](doctrine/deprecations@1.1.5...1.1.6)

---
updated-dependencies:
- dependency-name: doctrine/deprecations
  dependency-version: 1.1.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]