build(deps-dev): bump abortcontroller-polyfill from 1.7.5 to 1.7.6 (#548)

Bumps [abortcontroller-polyfill](https://github.com/mo/abortcontroller-polyfill) from 1.7.5 to 1.7.6.
- [Commits](https://github.com/mo/abortcontroller-polyfill/commits)

---
updated-dependencies:
- dependency-name: abortcontroller-polyfill
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]