ci: make workflows runnable ad-hoc (#5056) #2297

	name: protobuf
	# We're keeping the protodefs stable at v1, via buf lint checks on PRs.
	# Therefore it's safe to publish on every commit to main (and also tags).
	on:
	push:
	branches:
	- main
	# Consider automatically publishing on upcoming protocol changes,
	# to allow integration in downstream, e.g. web dependencies.
	# - protocol/*
	tags:
	- '**'
	# Also support ad-hoc calls for workflow
	workflow_call:
	workflow_dispatch:

	jobs:
	publish:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: bufbuild/buf-setup-action@v1
	with:
	buf_api_token: ${{ secrets.BUF_TOKEN }}
	github_token: ${{ secrets.GITHUB_TOKEN }}
	input: 'proto'

	- uses: bufbuild/buf-lint-action@v1
	with:
	input: 'proto'

	# N.B. We don't check for breaking changes here, because we do so per-PR, and notify there.
	# Occasionally we'll make breaking changes, the PR CI is notification enough of that.
	# We still want to publish the resulting changes to the BSR.

	- uses: bufbuild/buf-push-action@v1
	with:
	buf_token: ${{ secrets.BUF_TOKEN }}
	input: 'proto/penumbra'

Provide feedback