Break workflows into separate 'E2E Test' and 'Build and Unit Test' workflows, use `pull_request` instead of `pull_request_target` across workflows #1

	name: Build and Unit Tests
	on:
	pull_request:
	types:
	- labeled
	- opened
	- synchronize
	- reopened
	branches:
	- main
	- release-*
	paths-ignore:
	- 'config/**'
	- '**.md'
	push:
	tags:
	- '*'

	env:
	GO_VERSION: '1.22'

	jobs:
	build:
	concurrency:
	group: ${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true
	name: Build and Unit Test
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Setup Go
	uses: actions/setup-go@v5
	with:
	go-version: ${{ env.GO_VERSION }}
	cache: false
	- name: Lint
	uses: golangci/golangci-lint-action@v6
	with:
	args: --timeout 10m0s
	- name: Verify all generated pieces are up-to-date
	run: make generate-all && git add -N . && git diff --exit-code
	- name: Unit tests
	run: \|
	make test
	- name: Build HMC controller image
	run: \|
	make docker-build

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