Prevent Google Social Login token reuse

[hardillb]

fixes FlowFuse/security#114

Description

Keeps a cache of used tokens until they expire

Related Issue(s)

FlowFuse/security#114

Checklist

• I have read the contribution guidelines
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on FlowFuse/helm to update ConfigMap Template
  • Issue/PR raised on FlowFuse/CloudProject to update values for Staging/Production
• Link to Changelog Entry PR, or note why one is not needed.

Labels

• Includes a DB migration? -> add the area:migration label

[codecov]

Codecov Report

❌ Patch coverage is 42.85714% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.58%. Comparing base (264fe16) to head (ba53952).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
forge/ee/routes/sso/social/google.js	42.85%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7150      +/-   ##
==========================================
- Coverage   76.60%   76.58%   -0.02%     
==========================================
  Files         405      405              
  Lines       20573    20580       +7     
  Branches     4973     4974       +1     
==========================================
+ Hits        15759    15762       +3     
- Misses       4814     4818       +4     

Flag	Coverage Δ
backend	76.58% <42.85%> (-0.02%)	⬇️

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