chore(deps): update astroid requirement from ~=2.4 to ~=2.5 (appium#587)

Updates the requirements on [astroid](https://github.com/PyCQA/astroid) to permit the latest version.
- [Release notes](https://github.com/PyCQA/astroid/releases)
- [Changelog](https://github.com/PyCQA/astroid/blob/master/ChangeLog)
- [Commits](pylint-dev/astroid@astroid-2.4.0...astroid-2.5)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Pipfile

@@ -21,7 +21,7 @@ python-dateutil = "~=2.8"
 mock = "~=4.0"
 
 pylint = "~=2.6"
-astroid = "~=2.4"
+astroid = "~=2.5"
 isort = "~=5.7"
 
 mypy = "~=0.812"