composer.json: fix dependencies #74

	name: phpunit

	on: push

	jobs:
	phpunit:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/cache@v2
	with:
	path: vendor
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: ${{ runner.os }}-composer-
	- name: composer
	run: composer update
	- name: phpunit
	run: XDEBUG_MODE=coverage vendor/bin/phpunit
	- name: coveralls
	run: \|
	export COVERALLS_RUN_LOCALLY=1
	export COVERALLS_REPO_TOKEN=${{ secrets.coverallsToken }}
	php vendor/bin/php-coveralls -v
	- name: document
	run: \|
	docker run --rm -v $(pwd):/data phpdoc/phpdoc:3 --directory=src --directory=vendor/sweetrdf/rdf-interface/src --target=docs
	git fetch && git checkout docs --
	for i in `ls -1 \| grep -v ^docs$`; do rm -fR $i ; done
	cp -R docs/* .
	git config user.email "[email protected]"
	git config user.name "Github Actions Workflow"
	git add * \|\| true
	git commit -a -m 'Automatic documentation generation' && git push origin docs \|\| true
	phpstan:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/cache@v2
	with:
	path: vendor
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: ${{ runner.os }}-composer-
	- name: composer
	run: composer update
	- name: phpstan
	run: vendor/bin/phpstan analyse -l 8 src tests \|\| true

Provide feedback