Bump golang.org/x/sync from 0.8.0 to 0.9.0 in /tools #561

	name: CI
	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]
	workflow_dispatch: {} # support manual runs
	permissions:
	contents: read
	pull-requests: write
	jobs:
	ci:
	name: CI
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	with:
	fetch-depth: 2
	- name: Install bazelisk
	uses: bazelbuild/setup-bazelisk@v3
	- name: Mount bazel cache
	uses: actions/cache@v4
	with:
	path: "~/.cache/bazel"
	key: bazel
	- name: Install go
	uses: actions/setup-go@v5
	with:
	go-version: stable
	cache-dependency-path: go.work.sum
	- name: Install buf
	uses: bufbuild/buf-action@v1
	with:
	setup_only: true
	- name: Buf generate
	run: \|
	mkdir -p .tmp/bin
	cp $(which buf) .tmp/bin/buf
	make checkgenerate
	- name: Test
	run: make test
	- name: Lint
	run: make lint-go

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