[Snyk] Fix for 3 vulnerabilities

[OverStruck]

This PR was automatically created by Snyk using the credentials of a real user.

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:
  • server/requirements.txt

Vulnerabilities that will be fixed

By pinning:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	484/1000 Why? Has a fix available, CVSS 5.4	Cross-site Scripting (XSS) SNYK-PYTHON-JINJA2-6150717	jinja2: 2.11.3 -> 3.1.3	No	No Known Exploit
	344/1000 Why? Has a fix available, CVSS 2.6	Access Restriction Bypass SNYK-PYTHON-WERKZEUG-3319935	werkzeug: 1.0.1 -> 2.2.3	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Denial of Service (DoS) SNYK-PYTHON-WERKZEUG-3319936	werkzeug: 1.0.1 -> 2.2.3	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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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Cross-site Scripting (XSS) 🦉 Access Restriction Bypass 🦉 Denial of Service (DoS)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (8cf68d8) 79.71% compared to head (227bc7c) 79.71%.

Additional details and impacted files

@@           Coverage Diff            @@
##           dev-2.0     #100   +/-   ##
========================================
  Coverage    79.71%   79.71%           
========================================
  Files           18       18           
  Lines          276      276           
========================================
  Hits           220      220           
  Misses          56       56           

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