Release version 0.4.0 #6

	# This is based on:
	# https://github.com/codecov/example-java-maven/blob/main/.github/workflows/ci.yml
	name: Codecov
	on: [push, pull_request]
	jobs:
	run:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Set up JDK 11
	uses: actions/setup-java@v1
	with:
	java-version: 11
	- name: Install dependencies
	run: mvn install -DskipTests=true -Dmaven.javadoc.skip=true -B -V
	- name: Run tests and collect coverage
	run: mvn -B test
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v4
	with:
	# To find this token, and how it is stored in the repo, see:
	# https://docs.codecov.com/docs/adding-the-codecov-token
	token: ${{ secrets.CODECOV_TOKEN }}
	slug: google/fhir-gateway

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