Bump invoke from 1.4.1 to 1.6.0

Bumps [invoke](https://github.com/bitprophet/alabaster) from 1.4.1 to 1.6.0.
- [Release notes](https://github.com/bitprophet/alabaster/releases)
- [Changelog](https://github.com/bitprophet/alabaster/blob/master/docs/changelog.rst)
- [Commits](https://github.com/bitprophet/alabaster/commits)

---
updated-dependencies:
- dependency-name: invoke
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

poetry.lock

@@ -8,7 +8,7 @@ authors = ["Arduino <info@arduino.cc>"]
 python = "^3.9"
 
 # Integration tests dependencies.
-invoke = "1.4.1"
+invoke = "1.6.0"
 pytest = "6.1.2"
 python-dateutil = "^2.8.1"
 semver = "^2.13.0"