🧹 [Maintenance]: Update Benchmark documentation

[gaby]

Maintenance Task Description

The current documentation for benchmark in v3 points to Fiber v1. The page is also pointing to an older version of the TechEmpower cores.

https://docs.gofiber.io/next/extra/benchmarks/

Impact on the Project

High, since the benchmarks do not match the current version.

Additional Context (optional)

N/a

Checklist:

• I have confirmed that this maintenance task is currently not being addressed.
• I understand that this task will be evaluated by the maintainers and prioritized accordingly.
• I am available to provide further information if needed.

[avinmaster]

Now they are not visible at all (files are removed)

[gaby]

@avinmaster What do you mean?

[avinmaster]

https://raw.githubusercontent.com/gofiber/docs/master/static/img/benchmark-pipeline.png
https://raw.githubusercontent.com/gofiber/docs/master/static/img/benchmark_alloc.png

[avinmaster]

I'm about benchmark images on README

[ReneWerner87]

Ok my fault, they were outdated
I will fix this in a few hours
You can check https://docs.gofiber.io/extra/benchmarks for now

[avinmaster]

@ReneWerner87 Yeah, thank you! Just helping with that, trying to contribute)