Description

It looks like the otlpmetrichttp module wasn't tagged with v0.21.0.
Go will pull in the latest, but I need to pin to a specific version.

Environment

• OS: [macOS]
• Architecture: [amd64, darwin]
• Go Version: [1.16]
• opentelemetry-go version: [v0.21.0]

Steps To Reproduce

1. go get go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v0.21.0
2. See error:

go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v0.21.0: reading go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp/exporters/otlp/otlpmetric/otlpmetrichttp/go.mod at revision exporters/otlp/otlpmetric/otlpmetrichttp/v0.21.0: unknown revision exporters/otlp/otlpmetric/otlpmetrichttp/v0.21.0

Expected behavior

I would expect all modules to be tagged with a version.