Check isinstance on collections.abc, not typing classes

[scop]

Proposed change

collections.abc types are the proper ones to do instanceof checks with. Upcoming pylint 2.5.0 will flag these.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

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Additional information

• This PR fixes or closes issue: fixes #
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• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
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• There is no commented out code in this PR.
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• Tests have been added to verify that the new code works.

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  Updated and included derived files by running: python3 -m script.hassfest.
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  Updated by running python3 -m script.gen_requirements_all.
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[probot-home-assistant]

Hey there @andrewsayre, mind taking a look at this pull request as its been labeled with a integration (smartthings) you are listed as a codeowner for? Thanks!
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