[Snyk] Security upgrade flask-appbuilder from 3.4.1 to 4.3.0

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `pip` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • requirements/base.txt

⚠️ Warning

rich 13.3.3 has requirement typing-extensions<5.0,>=4.0.0; python_version < "3.9", but you have typing-extensions 3.10.0.0.
Flask-Limiter 3.3.0 has requirement typing-extensions>=4, but you have typing-extensions 3.10.0.0.
Flask-Limiter 3.3.0 has requirement Flask>=2, but you have Flask 1.1.4.
Flask-AppBuilder 4.3.0 has requirement Flask<3,>=2, but you have Flask 1.1.4.
Flask-AppBuilder 4.3.0 has requirement PyJWT<3.0.0,>=2.0.0, but you have PyJWT 1.7.1.
Flask-AppBuilder 4.3.0 has requirement click<9,>=8, but you have click 7.1.2.
Flask-AppBuilder 4.3.0 has requirement Flask-JWT-Extended<5.0.0,>=4.0.0, but you have Flask-JWT-Extended 3.25.1.

Vulnerabilities that will be fixed

By pinning:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	661/1000 Why? Recently disclosed, Has a fix available, CVSS 7.5	Brute Force SNYK-PYTHON-FLASKAPPBUILDER-5417249	flask-appbuilder: 3.4.1 -> 4.3.0	No	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Some vulnerabilities couldn't be fully fixed and so Snyk will still find them when the project is tested again. This may be because the vulnerability existed within more than one direct dependency, but not all of the affected dependencies could be upgraded.

Check the changes in this PR to ensure they won't cause issues with your project.

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