fix(deps): bump @probot/adapter-azure-functions from 1.0.14 to 1.0.15

Bumps [@probot/adapter-azure-functions](https://github.com/probot/adapter-azure-functions) from 1.0.14 to 1.0.15.
- [Release notes](https://github.com/probot/adapter-azure-functions/releases)
- [Commits](probot/adapter-azure-functions@v1.0.14...v1.0.15)

---
updated-dependencies:
- dependency-name: "@probot/adapter-azure-functions"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]