chore(deps): update buf to v1.31.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	Pending
bufbuild/buf		minor	v1.30.1 -> v1.31.0	v1.32.0
bufbuild/buf	repository	minor	v1.30.1 -> v1.31.0	v1.32.0
bufbuild/buf-setup-action	action	minor	v1.30.1 -> v1.31.0	v1.32.0

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Release Notes

bufbuild/buf (bufbuild/buf)

v1.31.0

Compare Source

• Update dependencies.

bufbuild/buf-setup-action (bufbuild/buf-setup-action)

v1.31.0

Compare Source

Release v1.31.0

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[alwaysmeticulous]

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_{Last updated for commit b7ae00c. This comment will update as new commits are pushed.}