Add OTLP partial success message handling to compliance matrix

[arminru]

I noticed that the handling of the partial success message introduced more than a year ago in #2696 is only implemented in a few SDKs. This adds it to the spec compliance matrix to keep track of adoption.

Related issues:

• Handle partial success responses from OTLP export services opentelemetry-go#3102
• Handle partial success responses from OTLP export services opentelemetry-python#2882
• Handle partial success responses from OTLP export services opentelemetry-js#3183
• Handle partial success responses from OTLP export services opentelemetry-dotnet#3592
• Handle partial success responses from OTLP export services opentelemetry-cpp#1577
• Handle partial success responses from OTLP export services opentelemetry-java#4706
• Handle partial success responses from OTLP export services opentelemetry-erlang#436
• Handle partial success responses from OTLP export services opentelemetry-rust#865
• Handle partial success responses from OTLP export services opentelemetry-ruby#1361
• Handle partial success responses from OTLP export services opentelemetry-php#802
• Handle partial success responses from OTLP export services opentelemetry-swift#320
• Handle partial success responses from OTLP export services opentelemetry-collector#6686

cc @jmacd

[arminru]

Suggested change

	| [Partial Success](https://github.com/open-telemetry/opentelemetry-proto/blob/main/docs/specification.md#partial-success) messages are handled and logged for OTLP/gRPC | X | + | | | | | | | | | | |
	| [Partial Success](https://github.com/open-telemetry/opentelemetry-proto/blob/main/docs/specification.md#partial-success-1) messages are handled and logged for OTLP/HTTP | X | + | | | | | | | | | | |
	| [Partial Success](https://github.com/open-telemetry/opentelemetry-proto/blob/main/docs/specification.md#partial-success) messages are handled and logged for OTLP/gRPC | X | + | | | | | | + | | | | |
	| [Partial Success](https://github.com/open-telemetry/opentelemetry-proto/blob/main/docs/specification.md#partial-success-1) messages are handled and logged for OTLP/HTTP | X | + | | | | | | + | | | | |

I think we can also check PHP assuming this is implemented for all six exporter flavors (HTTP|gRPC x Traces|Metrics|Logs).

@open-telemetry/php-maintainers @open-telemetry/php-approvers

[arminru]

I'll merge it as-is, feel free to update the matrix later on @open-telemetry/php-maintainers @open-telemetry/php-approvers.