Update module github.com/bufbuild/buf to v1.30.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/bufbuild/buf	v1.29.0 -> v1.30.0

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Release Notes

bufbuild/buf (github.com/bufbuild/buf)

v1.30.0

Compare Source

• Update buf generate so it populates the recently-added
  source_file_descriptors
  field of the CodeGeneratorRequest message. This provides the plugin with access to options
  that are configured to only be retained in source and not at runtime (via
  field option).
  Descriptors in the proto_file field will not include any options configured this way
  for the files named in file_to_generate field.
• Add --exclude-source-retention-options flag to buf build, which
  causes options configured to only be retained in source to be stripped
  from the output descriptors.

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