chore(example): Implement GraphQL Subscriptions with Yoga and WebSockets in BunJS

[ashbuilds]

This PR provides an example of integrating GraphQL subscriptions using WebSockets in BunJS, leveraging makeHandler api provided by graphql-ws.
👉 #3041

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[ardatan]

Should we test WS here?

[EmrysMyrddin]

Why not using the beforeEach and afterEach lifecycle hooks instead of manually calling setup and tear down functions ?

[ardatan]

When I wrote this test, Bun didn't have those hooks :/ Not sure if it has now.

[EmrysMyrddin]

Loookig at the documentation, it should :-) I don't know when they added them

[github-actions]

✅ Benchmark Results

     ✓ no_errors{mode:graphql}
     ✓ expected_result{mode:graphql}
     ✓ no_errors{mode:graphql-jit}
     ✓ expected_result{mode:graphql-jit}
     ✓ no_errors{mode:graphql-response-cache}
     ✓ expected_result{mode:graphql-response-cache}
     ✓ no_errors{mode:graphql-no-parse-validate-cache}
     ✓ expected_result{mode:graphql-no-parse-validate-cache}

     checks.......................................: 100.00% ✓ 390848      ✗ 0     
     data_received................................: 1.6 GB  13 MB/s
     data_sent....................................: 79 MB   657 kB/s
     http_req_blocked.............................: avg=1.55µs   min=952ns    med=1.34µs   max=5.82ms   p(90)=2µs      p(95)=2.22µs  
     http_req_connecting..........................: avg=2ns      min=0s       med=0s       max=144.75µs p(90)=0s       p(95)=0s      
     http_req_duration............................: avg=397.42µs min=219.2µs  med=352.8µs  max=24.54ms  p(90)=552.69µs p(95)=575.05µs
       { expected_response:true }.................: avg=397.42µs min=219.2µs  med=352.8µs  max=24.54ms  p(90)=552.69µs p(95)=575.05µs
     ✓ { mode:graphql-jit }.......................: avg=299.39µs min=219.2µs  med=277.82µs max=18.46ms  p(90)=310.41µs p(95)=323.79µs
     ✓ { mode:graphql-no-parse-validate-cache }...: avg=581.96µs min=481.86µs med=551.51µs max=10.38ms  p(90)=599.74µs p(95)=637.21µs
     ✓ { mode:graphql-response-cache }............: avg=377.49µs min=294.1µs  med=357.15µs max=16.31ms  p(90)=390.72µs p(95)=403.09µs
     ✓ { mode:graphql }...........................: avg=394.33µs min=302.07µs med=360.1µs  max=24.54ms  p(90)=410.41µs p(95)=457.76µs
     http_req_failed..............................: 0.00%   ✓ 0           ✗ 195424
     http_req_receiving...........................: avg=34.3µs   min=17.58µs  med=33.95µs  max=810.98µs p(90)=40.72µs  p(95)=44.42µs 
     http_req_sending.............................: avg=8.57µs   min=6.03µs   med=7.51µs   max=652.54µs p(90)=11.17µs  p(95)=12.56µs 
     http_req_tls_handshaking.....................: avg=0s       min=0s       med=0s       max=0s       p(90)=0s       p(95)=0s      
     http_req_waiting.............................: avg=354.54µs min=190.45µs med=310.54µs max=24.4ms   p(90)=509.17µs p(95)=529.64µs
     http_reqs....................................: 195424  1628.511231/s
     iteration_duration...........................: avg=609.17µs min=403.2µs  med=560.87µs max=25.24ms  p(90)=768.21µs p(95)=794.56µs
     iterations...................................: 195424  1628.511231/s
     vus..........................................: 1       min=1         max=1   
     vus_max......................................: 2       min=2         max=2