fix(di): change injector.resolve() visibility from private to protected

[Romakita]

Information

Type	Breaking change
Fix	No

[github-actions]

Benchmarks

• Machine: linux x64 | 2 vCPUs | 6.8GB Mem
• Node: v16.20.1
• Run: Mon Jul 03 2023 14:01:55 GMT+0000 (Coordinated Universal Time)
• Method: autocannon -c 100 -d 10 -p 10 localhost:3000 (two rounds; one to warm-up, one to measure)

	Version	Router	Requests/s	Latency	Throughput/Mb
fastify	3.29.4	✓	30486.4	32.50	5.44
nest-fastify	8.4.3	✓	24724.8	40.02	4.41
koa	2.13.4	✗	22091.2	44.72	3.94
fastify-injector	3.29.4	✓	17078.0	57.96	3.89
fastify-big-json	3.29.4	✓	6359.6	155.83	73.15
tsed-koa	7.30.1	✓	5203.6	190.21	4.55
nest	8.4.3	✓	5146.3	192.23	1.24
express-injector	4.18.1	✗	5127.9	193.46	1.17
express	4.18.1	✓	4983.0	199.01	0.89
tsed-express	7.30.1	✓	4616.5	213.51	0.85
express-morgan	4.18.1	✗	3834.3	257.40	0.68

Explanation

The benchmark shows a performance difference between the frameworks. We note that Ts.ED is often last. In fact, Ts.ED uses features useful to a production application which reduce its performance.

For example, Ts.ED initializes a sandbox (async_hook) for each request in order to work in an isolated context if necessary.
It also initializes the elements necessary for monitoring requests in a log manager.

All this at a necessary cost that reflects the reality of a production application ;)

[Romakita]

🎉 This PR is included in version 7.30.3 🎉

The release is available on:

• v7.30.3
• GitHub release

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