Bump sbt and plugins, and update GHA CI #40

	# Much copied from sbt-github-actions, modified to support running e2e tests
	name: Continuous Integration

	on:
	pull_request:
	branches: ['*']
	push:
	branches: ['master']

	jobs:
	build:
	name: Build and Test
	if: "!contains(github.event.head_commit.message, 'ci skip')"
	continue-on-error: ${{ matrix.experimental }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	scala: [2.13.15, 2.12.20]
	java: [8, 11, 17, 21]
	experimental: [false]

	runs-on: ${{ matrix.os }}
	steps:
	- name: Checkout current branch (full)
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Setup JDK
	uses: actions/setup-java@v4
	with:
	distribution: temurin
	java-version: ${{ matrix.java }}

	- name: Setup sbt launcher
	uses: sbt/setup-sbt@v1

	- name: Cache ivy2
	uses: actions/cache@v1
	with:
	path: ~/.ivy2/cache
	key: ${{ runner.os }}-sbt-ivy-cache-${{ hashFiles('*/.sbt') }}-${{ hashFiles('project/build.properties') }}

	- name: Cache coursier (linux)
	uses: actions/cache@v1
	with:
	path: ~/.cache/coursier/v1
	key: ${{ runner.os }}-sbt-coursier-cache-${{ hashFiles('*/.sbt') }}-${{ hashFiles('project/build.properties') }}

	- name: Cache sbt
	uses: actions/cache@v1
	with:
	path: ~/.sbt
	key: ${{ runner.os }}-sbt-cache-${{ hashFiles('*/.sbt') }}-${{ hashFiles('project/build.properties') }}

	- name: Run tests
	run: sbt '++ ${{ matrix.scala }}' clean coverage test coverageReport

	- name: Coverage Aggregate
	run: sbt coverageAggregate

	- name: Codecov
	uses: codecov/codecov-action@v1
	with:
	fail_ci_if_error: false

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