Beam Go uses Go modules for package management. Compile and runtime dependencies for your Beam SDK version are listed in go.sum in the Beam repository. This can be found at
https://raw.githubusercontent.com/apache/beam/v<VERSION_NUMBER>/sdks/go.sum
Note: To just view direct dependencies, you can view the go.mod file instead, direct dependencies are listed in the initial require statement. This can be found at https://raw.githubusercontent.com/apache/beam/v<VERSION_NUMBER>/sdks/go.mod