otel.Version() is used in across modules

[pellared]

The usage of otel.Version() in other modules then the API can cause reporting improper version of other components.

For instance, if one use the 1.2.0 version of the API, but 1.0.0 of the SDK, the version in the resources would be reported as 1.2.0 (instead of 1.0.0).

This is "kind of" related to #3846

[MrAlias]

opentelemetry-go/sdk/resource/builtin.go

Line 65 in 63a0f51

semconv.TelemetrySDKVersion(otel.Version()),

[pellared]

opentelemetry-go/exporters/otlp/internal/header.go

Line 23 in f4a9d78

return "OTel OTLP Exporter Go/" + otel.Version()

[remychantenay]

I believe we can close this issue, WDYT @pellared ?