Bump flask from 2.0.1 to 2.0.2 in /blockdiag

[dependabot]

Bumps flask from 2.0.1 to 2.0.2.

Release notes

Sourced from flask's releases.

2.0.2

• Changes: https://flask.palletsprojects.com/en/2.0.x/changes/#version-2-0-2

Changelog

Sourced from flask's changelog.

Version 2.0.2

Released 2021-10-04

• Fix type annotation for teardown_* methods. :issue:4093
• Fix type annotation for before_request and before_app_request decorators. :issue:4104
• Fixed the issue where typing requires template global decorators to accept functions with no arguments. :issue:4098
• Support View and MethodView instances with async handlers. :issue:4112
• Enhance typing of app.errorhandler decorator. :issue:4095
• Fix registering a blueprint twice with differing names. :issue:4124
• Fix the type of static_folder to accept pathlib.Path. :issue:4150
• jsonify handles decimal.Decimal by encoding to str. :issue:4157
• Correctly handle raising deferred errors in CLI lazy loading. :issue:4096
• The CLI loader handles **kwargs in a create_app function. :issue:4170
• Fix the order of before_request and other callbacks that trigger before the view returns. They are called from the app down to the closest nested blueprint. :issue:4229

Commits

• 6f77625 Merge pull request #4287 from pallets/release-2.0.2
• 174fe44 release version 2.0.2
• 6d637f0 Merge pull request #4230 from matipau/blueprint-fix
• 3f6cdbd use similar code for all callback-applying methods
• 166a2a6 Fix callback order for nested blueprints
• 4346498 Merge pull request #4285 from Makonede/patch-1
• 7685851 fix list numbering
• f8c881b Merge pull request #4267 from sprutner/patch-1
• 1a40d9b fix grammar in links to app and request context
• b4094b3 Merge pull request #4269 from Jalkhov/patch-1
• Additional commits viewable in compare view

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