Refactor services injection

[gaelreyrol]

This PR simplifies the bundle extension by heavily relying on Symfony dependency injection through service configuration.

Closes #29.

[codecov]

Codecov Report

Attention: 383 lines in your changes are missing coverage. Please review.

Comparison is base (ad4a4f3) 64.09% compared to head (eb490cf) 35.28%.

Files	Patch %	Lines
src/Resources/config/services_metrics.php	0.00%	65 Missing ⚠️
src/Resources/config/services_traces.php	0.00%	62 Missing ⚠️
src/Resources/config/services_logs.php	0.00%	61 Missing ⚠️
...pendencyInjection/OpenTelemetryTracesExtension.php	0.00%	30 Missing ⚠️
src/Resources/config/services_transports.php	0.00%	28 Missing ⚠️
...DependencyInjection/OpenTelemetryLogsExtension.php	0.00%	25 Missing ⚠️
...endencyInjection/OpenTelemetryMetricsExtension.php	0.00%	20 Missing ⚠️
src/Resources/config/services.php	0.00%	17 Missing ⚠️
src/OpenTelemetry/Metric/ExemplarFilterFactory.php	0.00%	8 Missing ⚠️
src/DependencyInjection/OpenTelemetryExtension.php	0.00%	7 Missing ⚠️
... and 30 more

Additional details and impacted files

@@              Coverage Diff              @@
##               main      #38       +/-   ##
=============================================
- Coverage     64.09%   35.28%   -28.82%     
+ Complexity      539      531        -8     
=============================================
  Files            98      112       +14     
  Lines          2337     2378       +41     
=============================================
- Hits           1498      839      -659     
- Misses          839     1539      +700     

Flag	Coverage Δ
phpunit	35.28% <25.48%> (-28.82%)	⬇️

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