Improve concurrent request limiter

[garrrikkotua]

Changes proposed ✍️

What

🤖 Generated by Copilot at 64ca2a8

Added a new parameter to ConcurrentRequestLimiter to limit the cache key lifetime in Redis. This improves the performance and reliability of the rate limiting feature in services/libs/redis.
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🤖 Generated by Copilot at 64ca2a8

Sing, O Muse, of the cunning coder who devised
A new parameter for the ConcurrentRequestLimiter,
The swift and skillful class that guards the Redis cache
From the onslaught of concurrent requests that strain its power.

Why

How

🤖 Generated by Copilot at 64ca2a8

• Add maxLockTimeSeconds parameter to ConcurrentRequestLimiter constructor and methods to prevent stale cache keys from blocking concurrent requests (link, link)

Checklist ✅

• Label appropriately with Feature, Improvement, or Bug.
• Add screehshots to the PR description for relevant FE changes
• New backend functionality has been unit-tested.
• API documentation has been updated (if necessary) (see docs on API documentation).
• Quality standards are met.