chore(deps): update all minor dependencies

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence	Update
Flask (changelog)	==2.0.3 -> ==2.2.2					minor
flake8 (changelog)	==3.7.7 -> ==3.9.2					minor
notifier-utils	50.0.0 -> 50.1.0					minor
pytest (source, changelog)	==7.1.2 -> ==7.2.0					minor
pytest-env	==0.6.2 -> ==0.8.1					minor
pytest-mock	==3.7.0 -> ==3.10.0					minor
python-dotenv	==0.10.3 -> ==0.21.0					minor
requests-mock (source)	==1.9.3 -> ==1.10.0					minor
socketio-client	==0.5.6 -> ==0.7.2					minor

Review

• Updates have been tested and work
• If updates are AWS related, versions match the infrastructure (e.g. Lambda runtime, database, etc.)

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