chore(ci): query performance testing using K6

[dotansimha]

• [x] Setup a new entry point for running graph-node and all requirements
• [x] Reuse parts from e2e/integration testing (moved shared parts into a new crate)
• [x] Setup a test project with a contract + Subgraph
• [x] Run K6 as part of the CI workflow
• [x] Add GH Actions workflow for running + commenting results on each PR.

[github-actions[bot]]

✅ Benchmark Results

     ✓ no_errors
     ✓ expected_result

     checks.........................: 100.00% ✓ 18210      ✗ 0   
     data_received..................: 5.3 MB  177 kB/s
     data_sent......................: 2.8 MB  93 kB/s
     http_req_blocked...............: avg=4.44µs  min=800ns  med=1.8µs   max=1.78ms   p(90)=2.8µs   p(95)=3.4µs   
     http_req_connecting............: avg=1.01µs  min=0s     med=0s      max=1.54ms   p(90)=0s      p(95)=0s      
     http_req_duration..............: avg=32.69ms min=8.01ms med=31.2ms  max=101.97ms p(90)=44.42ms p(95)=49.82ms 
       { expected_response:true }...: avg=32.69ms min=8.01ms med=31.2ms  max=101.97ms p(90)=44.42ms p(95)=49.82ms 
     http_req_failed................: 0.00%   ✓ 0          ✗ 9105
     http_req_receiving.............: avg=57.63µs min=11.5µs med=31.7µs  max=10.19ms  p(90)=82.16µs p(95)=140.98µs
     http_req_sending...............: avg=25.23µs min=5.5µs  med=10.1µs  max=6.72ms   p(90)=18µs    p(95)=36.37µs 
     http_req_tls_handshaking.......: avg=0s      min=0s     med=0s      max=0s       p(90)=0s      p(95)=0s      
     http_req_waiting...............: avg=32.61ms min=7.97ms med=31.11ms max=101.91ms p(90)=44.34ms p(95)=49.63ms 
     http_reqs......................: 9105    303.315348/s
     iteration_duration.............: avg=32.94ms min=8.11ms med=31.43ms max=102.14ms p(90)=44.77ms p(95)=50.17ms 
     iterations.....................: 9105    303.315348/s
     vus............................: 10      min=10       max=10
     vus_max........................: 10      min=10       max=10

[evaporei]

@dotansimha, is this still WIP? I mean by the commit title and message.

[dotansimha]

@dotansimha, is this still WIP? I mean by the commit title and message.

No longer WIP, I rebase and resolved your review comments, thanks!

[dotansimha]

@dizzyd I saw you self-assigned. I can rebase this PR if you want to get this in soon :)

[dizzyd]

Hey @dotansimha - I'm going to close this PR, as we talked about breaking it up into some smaller PRs. Let me know if you want to re-open/change this one -- that's fine too. :)