remove get-port usage from http tests and test agent

[rochdev]

What does this PR do?

Remove get-port usage from http tests and test agent.

Motivation

We often see flakiness from race conditions between getting and using available ports. Node can do this for us, so when possible we should rely on server.listen to do both steps at the same time for us, removing the possibility of a race condition. This should alleviate most of the seemingly random EADDRINUSE errors in tests.

Additional Notes

Since get-port is used in many other places, it's possible that we still get the issue, at which point it should also be removed from any other problematic tests.

[github-actions]

Overall package size

Self size: 6.71 MB
Deduped: 61.97 MB
No deduping: 62.25 MB

Dependency sizes

name	version	self size	total size
@datadog/native-appsec	8.0.1	15.59 MB	15.6 MB
@datadog/native-iast-taint-tracking	2.1.0	14.91 MB	14.92 MB
@datadog/pprof	5.3.0	9.85 MB	10.22 MB
protobufjs	7.2.5	2.77 MB	6.56 MB
@datadog/native-iast-rewriter	2.3.1	2.15 MB	2.24 MB
@opentelemetry/core	1.14.0	872.87 kB	1.47 MB
@datadog/native-metrics	2.0.0	898.77 kB	1.3 MB
@opentelemetry/api	1.8.0	1.21 MB	1.21 MB
import-in-the-middle	1.8.1	71.67 kB	741.34 kB
msgpack-lite	0.1.26	201.16 kB	281.59 kB
opentracing	0.14.7	194.81 kB	194.81 kB
semver	7.5.4	93.4 kB	123.8 kB
pprof-format	2.1.0	111.69 kB	111.69 kB
@datadog/sketches-js	2.1.0	109.9 kB	109.9 kB
lodash.sortby	4.7.0	75.76 kB	75.76 kB
lru-cache	7.14.0	74.95 kB	74.95 kB
ignore	5.2.4	51.22 kB	51.22 kB
int64-buffer	0.1.10	49.18 kB	49.18 kB
shell-quote	1.8.1	44.96 kB	44.96 kB
istanbul-lib-coverage	3.2.0	29.34 kB	29.34 kB
tlhunter-sorted-set	0.1.0	24.94 kB	24.94 kB
limiter	1.1.5	23.17 kB	23.17 kB
dc-polyfill	0.1.4	23.1 kB	23.1 kB
retry	0.13.1	18.85 kB	18.85 kB
jest-docblock	29.7.0	8.99 kB	12.76 kB
crypto-randomuuid	1.0.0	11.18 kB	11.18 kB
path-to-regexp	0.1.7	6.78 kB	6.78 kB
koalas	1.0.2	6.47 kB	6.47 kB
module-details-from-path	1.0.3	4.47 kB	4.47 kB

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-06-21 20:45:38

Comparing candidate commit cc3230b in PR branch remove-http-get-port with baseline commit 834e19e in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 262 metrics, 4 unstable metrics.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.75%. Comparing base (b1f1f85) to head (cc3230b).
Report is 4 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #4426       +/-   ##
===========================================
- Coverage   92.64%   63.75%   -28.90%     
===========================================
  Files         116      249      +133     
  Lines        4173    10825     +6652     
  Branches       33       33               
===========================================
+ Hits         3866     6901     +3035     
- Misses        307     3924     +3617     

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