[bug] Attribute Limits (SdkLimitOptions) cannot be changed programmatically

[jordankay13]

Package

OpenTelemetry

Package Version

Package Name	Version
OpenTelemetry.Exporter.OpenTelemetryProtocol	1.11.2

Runtime Version

net462, net48

Description

According to the specification:
https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/common/README.md#attribute-limits

If the SDK implements the limits above, it MUST provide a way to change these limits programmatically. Names of the configuration options SHOULD be the same as in the list below.

Environment variables could be argued as "programmable" but I would argue this should be understood as "we can set it from the application code", and not "we can set it from our infrastructure-as-code code".

The only way to affect this limit in the current OpenTelemetry.Exporter.OpenTelemetryProtocol is to set the environment variables OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT, OTEL_ATTRIBUTE_COUNT_LIMIT & their signal-specific equivalents.

SdkLimitOptions is internal:

opentelemetry-dotnet/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/Implementation/SdkLimitOptions.cs

Line 8 in f63f8d9

internal sealed class SdkLimitOptions

The only OtlpTraceExporter that accepts SdkLimitOptions is also internal:
https://github.com/open-telemetry/opentelemetry-dotnet/blob/main/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OtlpTraceExporter.cs#L47

I can't find any public method to adjust the SdkLimitOptions.

Steps to Reproduce

SdkLimitOptions is internal and cannot be accessed.
No public method exists to update SpanAttributeCountLimit (or the other properties).

Expected Result

I expect to be able to change the properties of SdkLimitOptions from application code

Actual Result

I have not been able to find a way, other than through environment variables, to set this limit.

Additional Context

No response