refactor: use stricter typescript

[jasonkuhrt]

This PR leverages community tsconfig strict settings and updates codebase
to comply with it. All code changes are minor. Most fall into one of these
categories:

1. Record index access syntax.
2. Handling of undefined states (sometimes actually improved, sometimes
   just needing a ! to help TS).

Pedantically, a patch release would be needed for affected packages. I would suggest ignoring these changes in our changelog nor making a release.

[changeset-bot]

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[github-actions]

Apollo Federation Subgraph Compatibility Results

Federation 1 Support	Federation 2 Support
_service 🟢 @key (single) 🟢 @key (multi) 🟢 @key (composite) 🟢 repeatable @key 🟢 @requires 🟢 @provides 🟢 federated tracing 🟢	@link 🟢 @shareable 🟢 @tag 🟢 @override 🟢 @inaccessible 🟢 @composeDirective 🟢 @interfaceObject 🟢

Learn more:

• Apollo Federation Subgraph Specification
• Compatibility Tests

[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}
     ✓ no_errors{mode:uws}
     ✓ expected_result{mode:uws}

     checks.......................................: 100.00% ✓ 517228     ✗ 0     
     data_received................................: 2.1 GB  14 MB/s
     data_sent....................................: 104 MB  693 kB/s
     http_req_blocked.............................: avg=1.49µs   min=972ns    med=1.31µs   max=279.99µs p(90)=1.98µs   p(95)=2.16µs  
     http_req_connecting..........................: avg=2ns      min=0s       med=0s       max=133.48µs p(90)=0s       p(95)=0s      
     http_req_duration............................: avg=361.62µs min=221.2µs  med=329.7µs  max=14.76ms  p(90)=469.07µs p(95)=492.27µs
       { expected_response:true }.................: avg=361.62µs min=221.2µs  med=329.7µs  max=14.76ms  p(90)=469.07µs p(95)=492.27µs
     ✓ { mode:graphql-jit }.......................: avg=291.35µs min=221.2µs  med=274.48µs max=14.72ms  p(90)=305.88µs p(95)=322µs   
     ✓ { mode:graphql-no-parse-validate-cache }...: avg=492.36µs min=401.69µs med=470.37µs max=6.01ms   p(90)=515.52µs p(95)=558.76µs
     ✓ { mode:graphql-response-cache }............: avg=345.99µs min=270.92µs med=329.81µs max=6.33ms   p(90)=359.85µs p(95)=370.47µs
     ✓ { mode:graphql }...........................: avg=367.88µs min=280.85µs med=338.66µs max=14.76ms  p(90)=395.69µs p(95)=450.44µs
     ✓ { mode:uws }...............................: avg=346µs    min=271.72µs med=328.02µs max=5.95ms   p(90)=363.84µs p(95)=385.84µs
     http_req_failed..............................: 0.00%   ✓ 0          ✗ 258614
     http_req_receiving...........................: avg=32.7µs   min=15.93µs  med=32.42µs  max=2.84ms   p(90)=39.02µs  p(95)=41.67µs 
     http_req_sending.............................: avg=8.6µs    min=5.9µs    med=7.56µs   max=343.53µs p(90)=10.96µs  p(95)=12µs    
     http_req_tls_handshaking.....................: avg=0s       min=0s       med=0s       max=0s       p(90)=0s       p(95)=0s      
     http_req_waiting.............................: avg=320.31µs min=191.87µs med=289.24µs max=14.63ms  p(90)=427.29µs p(95)=449.12µs
     http_reqs....................................: 258614  1724.07085/s
     iteration_duration...........................: avg=575.03µs min=387.22µs med=539µs    max=15.4ms   p(90)=686.45µs p(95)=714.84µs
     iterations...................................: 258614  1724.07085/s
     vus..........................................: 1       min=1        max=1   
     vus_max......................................: 2       min=2        max=2   

[github-actions]

💻 Website Preview

The latest changes are available as preview in: https://719ce521.graphql-yoga.pages.dev

[jasonkuhrt]

I do like this one but its worth its own PR, a lot of code currently conflates this which is pretty typical with this settings when trying it out for the first time on a codebase.

[ardatan]

Typings might be wrong because if I remember correctly, it returns Buffer which has toString method that accepts an encoding type.

[ardatan]

Awesome! Thanks 🙏