Add peer.service attribute to symfony http client spans

[caetanev]

The peer.service attribute helps to relate traces between services. The attribute is defined in the semantic conventions: https://github.com/open-telemetry/semantic-conventions/blob/main/docs/attributes-registry/peer.md?plain=1#L15

Add the peer.service attribute to the HTTP client spans that request known services.

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• ✅ login: caetanev / name: Evandro Caetano (73d36a5)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.33%. Comparing base (3a66cc8) to head (73d36a5).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #302   +/-   ##
=========================================
  Coverage     80.33%   80.33%           
  Complexity     1026     1026           
=========================================
  Files            98       98           
  Lines          4113     4114    +1     
=========================================
+ Hits           3304     3305    +1     
  Misses          809      809           

Flag	Coverage Δ
Aws	85.51% <ø> (ø)
Context/Swoole	0.00% <ø> (ø)
Instrumentation/CakePHP	20.00% <ø> (ø)
Instrumentation/CodeIgniter	73.94% <ø> (ø)
Instrumentation/ExtAmqp	89.58% <ø> (ø)
Instrumentation/Guzzle	69.73% <ø> (ø)
Instrumentation/HttpAsyncClient	81.33% <ø> (ø)
Instrumentation/IO	70.90% <ø> (ø)
Instrumentation/MongoDB	77.33% <ø> (ø)
Instrumentation/OpenAIPHP	86.82% <ø> (ø)
Instrumentation/PDO	89.56% <ø> (ø)
Instrumentation/Psr14	78.12% <ø> (ø)
Instrumentation/Psr15	93.50% <ø> (ø)
Instrumentation/Psr16	97.50% <ø> (ø)
Instrumentation/Psr18	82.08% <ø> (ø)
Instrumentation/Psr3	60.25% <ø> (ø)
Instrumentation/Psr6	97.61% <ø> (ø)
Instrumentation/Slim	86.95% <ø> (ø)
Instrumentation/Symfony	89.07% <100.00%> (+0.03%)	⬆️
Instrumentation/Yii	77.77% <ø> (ø)
Logs/Monolog	100.00% <ø> (ø)
Propagation/ServerTiming	100.00% <ø> (ø)
Propagation/TraceResponse	100.00% <ø> (ø)
ResourceDetectors/Container	93.02% <ø> (ø)
Sampler/RuleBased	32.14% <ø> (ø)
Shims/OpenTracing	92.99% <ø> (ø)
Symfony	88.20% <ø> (ø)

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Files with missing lines	Coverage Δ
...entation/Symfony/src/HttpClientInstrumentation.php	87.80% <100.00%> (+0.15%)	⬆️

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