fix error in http2 plugin when it was enabled after request start

[rochdev]

What does this PR do?

Fix error in http2 plugin when it was enabled after request start.

Motivation

The http2 client plugin assumes that start was handled by the plugin when asyncStart is published. In most cases this is true, but it's possible that the plugin was enabled after a request started. This is not a problem if there were no other subscribers since the instrumentation itself won't run at that point, but if there is one, then the request will be patched even if the plugin was not there to handle start and add the store to the context.

[github-actions]

Overall package size

Self size: 5.43 MB
Deduped: 61.07 MB
No deduping: 61.24 MB

Dependency sizes

name	version	self size	total size
@datadog/native-iast-taint-tracking	1.6.3	16.43 MB	16.43 MB
@datadog/native-appsec	4.0.0	14.83 MB	14.83 MB
@datadog/pprof	4.0.1	9.32 MB	10.16 MB
protobufjs	7.2.4	2.74 MB	6.52 MB
@datadog/native-iast-rewriter	2.2.0	2.27 MB	2.36 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	1.4.1	780.32 kB	780.32 kB
import-in-the-middle	1.4.2	41.4 kB	704.79 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
@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
ipaddr.js	2.1.0	60.23 kB	60.23 kB
ignore	5.2.4	51.22 kB	51.22 kB
int64-buffer	0.1.10	49.18 kB	49.18 kB
istanbul-lib-coverage	3.2.0	29.34 kB	29.34 kB
lodash.uniq	4.5.0	25.01 kB	25.01 kB
limiter	1.1.5	23.17 kB	23.17 kB
retry	0.13.1	18.85 kB	18.85 kB
lodash.kebabcase	4.1.1	17.75 kB	17.75 kB
node-abort-controller	3.1.1	16.89 kB	16.89 kB
lodash.pick	4.4.0	16.33 kB	16.33 kB
jest-docblock	29.7.0	8.99 kB	12.76 kB
crypto-randomuuid	1.0.0	11.18 kB	11.18 kB
diagnostics_channel	1.1.0	7.07 kB	7.07 kB
path-to-regexp	0.1.7	6.78 kB	6.78 kB
koalas	1.0.2	6.47 kB	6.47 kB
methods	1.1.2	5.29 kB	5.29 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}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.42%. Comparing base (04c8f60) to head (b1f9846).
Report is 399 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3714      +/-   ##
==========================================
- Coverage   85.09%   80.42%   -4.68%     
==========================================
  Files         227        3     -224     
  Lines        9288      373    -8915     
  Branches       33       33              
==========================================
- Hits         7904      300    -7604     
+ Misses       1384       73    -1311     

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[pr-commenter]

Benchmarks

Benchmark execution time: 2023-10-31 16:51:37

Comparing candidate commit b1f9846 in PR branch fix-http2-late-plugin-init with baseline commit 2b10ebd in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 479 metrics, 13 unstable metrics.