feat(common): ability to configure health check and readiness check endpoints

[ardatan]

No description provided.

[github-actions]

✅ Benchmark Results

     ✓ no_errors
     ✓ expected_result

     checks.........................: 100.00% ✓ 116584     ✗ 0    
     data_received..................: 27 MB   884 kB/s
     data_sent......................: 6.7 MB  223 kB/s
     http_req_blocked...............: avg=1.23µs   min=800ns   med=1.1µs    max=332.8µs p(90)=1.6µs    p(95)=1.8µs   
     http_req_connecting............: avg=2ns      min=0s      med=0s       max=154.3µs p(90)=0s       p(95)=0s      
   ✓ http_req_duration..............: avg=435.94µs min=341.3µs med=388.8µs  max=30.98ms p(90)=435.91µs p(95)=509.05µs
       { expected_response:true }...: avg=435.94µs min=341.3µs med=388.8µs  max=30.98ms p(90)=435.91µs p(95)=509.05µs
     http_req_failed................: 0.00%   ✓ 0          ✗ 58292
     http_req_receiving.............: avg=20.08µs  min=12.5µs  med=17.3µs   max=3.73ms  p(90)=23µs     p(95)=28.29µs 
     http_req_sending...............: avg=6.12µs   min=4.3µs   med=5.1µs    max=6.97ms  p(90)=6.9µs    p(95)=8.1µs   
     http_req_tls_handshaking.......: avg=0s       min=0s      med=0s       max=0s      p(90)=0s       p(95)=0s      
     http_req_waiting...............: avg=409.73µs min=319.7µs med=365.4µs  max=30.82ms p(90)=404.9µs  p(95)=468.55µs
     http_reqs......................: 58292   1942.92269/s
     iteration_duration.............: avg=507.24µs min=396.9µs med=457.51µs max=31.58ms p(90)=517.5µs  p(95)=596.35µs
     iterations.....................: 58292   1942.92269/s
     vus............................: 1       min=1        max=1  
     vus_max........................: 1       min=1        max=1  

[github-actions]

The latest changes of this PR are available as canary in npm (based on the declared changesets):

@graphql-yoga/common@0.2.0-canary-1087d1d.0
graphql-yoga@2.0.1-canary-1087d1d.0
@graphql-yoga/node@0.1.1-canary-1087d1d.0