Is your feature request related to a problem? Please describe.

We currently only use HS256-signed tokens for the benchmarks and this might not be indicative of real-world performance.

Describe the solution you'd like

1. Add benchmarks for tokens signed with the following algorithms:
   • RS256
   • EC256
   • EdDSA
2. Implement a function in the test_utils crate for generating signed tokens easily.

Describe alternatives you've considered

We could add more algorithms but running them might be too time-consuming.

Additional context

N/A