Allow span suppression strategy configuration using file-based and env-based config

[Nevay]

Part of #1579, adds experimental support for SpanSuppressionStrategy configuration using distribution configuration.

The spankind and semconv strategies are currently equivalent as we do not provide SemanticConventionResolver yet.

Env based

OTEL_EXPERIMENTAL_SPAN_SUPPRESSION_STRATEGY=none
OTEL_EXPERIMENTAL_SPAN_SUPPRESSION_STRATEGY=spankind
OTEL_EXPERIMENTAL_SPAN_SUPPRESSION_STRATEGY=semconv

File based

distribution:
  opentelemetry_php:
    span_suppression_strategy/development:
      spankind:

distribution:
  opentelemetry_php:
    span_suppression_strategy/development:
      semconv:

[codecov]

Codecov Report

❌ Patch coverage is 21.31148% with 48 lines in your changes missing coverage. Please review.
✅ Project coverage is 67.97%. Comparing base (938c2bc) to head (29bf4c2).

Files with missing lines	Patch %	Lines
...ider/Distribution/DistributionConfigurationSdk.php	0.00%	11 Missing ⚠️
...gEnv/Distribution/DistributionConfigurationSdk.php	0.00%	9 Missing ⚠️
.../Config/SDK/ComponentProvider/OpenTelemetrySdk.php	0.00%	6 Missing ⚠️
...c/SDK/Common/Distribution/DistributionRegistry.php	0.00%	5 Missing ⚠️
...tProvider/Trace/SpanSuppressionStrategySemConv.php	0.00%	4 Missing ⚠️
...Provider/Trace/SpanSuppressionStrategySpanKind.php	0.00%	4 Missing ⚠️
...ConfigEnv/Trace/SpanSuppressionStrategySemConv.php	0.00%	4 Missing ⚠️
...onfigEnv/Trace/SpanSuppressionStrategySpanKind.php	0.00%	4 Missing ⚠️
src/SDK/Common/Distribution/SdkDistribution.php	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1920      +/-   ##
============================================
- Coverage     68.29%   67.97%   -0.33%     
- Complexity     3009     3030      +21     
============================================
  Files           449      457       +8     
  Lines          8798     8859      +61     
============================================
+ Hits           6009     6022      +13     
- Misses         2789     2837      +48     

Flag	Coverage Δ
8.1	67.70% <21.31%> (-0.32%)	⬇️
8.2	67.88% <21.31%> (-0.38%)	⬇️
8.3	67.93% <21.31%> (-0.29%)	⬇️
8.4	67.90% <21.31%> (-0.31%)	⬇️
8.5	67.10% <21.31%> (-0.29%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/SDK/SdkAutoloader.php	92.66% <100.00%> (+0.69%)	⬆️
src/SDK/Common/Distribution/SdkDistribution.php	0.00% <0.00%> (ø)
...tProvider/Trace/SpanSuppressionStrategySemConv.php	0.00% <0.00%> (ø)
...Provider/Trace/SpanSuppressionStrategySpanKind.php	0.00% <0.00%> (ø)
...ConfigEnv/Trace/SpanSuppressionStrategySemConv.php	0.00% <0.00%> (ø)
...onfigEnv/Trace/SpanSuppressionStrategySpanKind.php	0.00% <0.00%> (ø)
...c/SDK/Common/Distribution/DistributionRegistry.php	0.00% <0.00%> (ø)
.../Config/SDK/ComponentProvider/OpenTelemetrySdk.php	0.00% <0.00%> (ø)
...gEnv/Distribution/DistributionConfigurationSdk.php	0.00% <0.00%> (ø)
...ider/Distribution/DistributionConfigurationSdk.php	0.00% <0.00%> (ø)

... and 5 files with indirect coverage changes

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[Nevay]

Suggested change

	$node = $builder->arrayNode('opentelemetry_php');
	$node = $builder->arrayNode('opentelemetry_php/development');