chore(deps-dev): bump azure-functions-core-tools

Bumps [azure-functions-core-tools](https://github.com/Azure/azure-functions-core-tools) from 4.0.6543 to 4.0.6821.
- [Release notes](https://github.com/Azure/azure-functions-core-tools/releases)
- [Commits](Azure/azure-functions-core-tools@4.0.6543...4.0.6821)

---
updated-dependencies:
- dependency-name: azure-functions-core-tools
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>