infra: Add pull request presubmit checks, continuous `main` checks #2

	name: "presubmit"

	on:
	push:
	branches:
	- master
	- release/*
	tags:
	- v*
	pull_request:

	concurrency:
	group: ${{ github.workflow }}.${{ github.ref }}
	cancel-in-progress: ${{ github.event_name == 'pull_request' }}

	jobs:
	bazel-builder:
	# TODO(scott): Move to CI runners
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: bazelbuild/setup-bazelisk@v3
	- name: Mount bazel cache
	uses: actions/cache@v4
	with:
	path: "~/.cache/bazel"
	key: bazel
	- name: run all tests
	run: \|
	bazel test --config=bot //...

	golang-builder:
	# TODO(scott): Move to CI runners
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: run all tests
	run: \|
	go build ./...
	go test ./...

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