Merge the two CONTRIBUTING.md's #770

	---
	name: FVT
	on: [push, pull_request]
	jobs:
	fvt:
	name: Test with Kafka ${{ matrix.kafka-version }}
	runs-on: ubuntu-latest

	# We want to run on external PRs, but not on our own internal PRs as they'll be run
	# by the push to the branch.
	if: github.event_name == 'push' \|\| github.event.pull_request.head.repo.full_name != github.repository
	strategy:
	fail-fast: false
	matrix:
	go-version: [1.19.x]
	kafka-version: [3.3.2, 3.4.1, 3.5.1]
	env:
	DEBUG: true
	GOFLAGS: -trimpath
	KAFKA_VERSION: ${{ matrix.kafka-version }}
	steps:
	- uses: actions/checkout@v3
	- name: Setup Go
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go-version }}
	- name: Get Go environment
	id: go-env
	run: \|
	echo "cache=$(go env GOCACHE)" >> $GITHUB_OUTPUT
	echo "modcache=$(go env GOMODCACHE)" >> $GITHUB_OUTPUT
	- name: Set up cache
	uses: actions/cache@v3
	with:
	path: \|
	${{ steps.go-env.outputs.cache }}
	${{ steps.go-env.outputs.modcache }}
	key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
	restore-keys: \|
	${{ runner.os }}-go-
	- name: Test (Functional)
	run: make test_functional

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