GHA: add stats step summary. #5

	name: Push (compose tests)

	on:
	push: {}
	pull_request:
	branches: [ master ]
	workflow_dispatch: {}

	jobs:
	tests-and-stats:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	submodules: recursive

	- name: Install JavaScript and ClojureScript node modules
	run: \|
	( cd js && npm install )
	( cd cljs && npm install )

	- name: JavaScript Step Tests
	run: make test^js

	- name: JavaScript Regression Tests
	run: make REGRESS=1 test^js

	- name: Python Step Tests
	run: make test^python

	- name: Python Regression Tests
	run: make REGRESS=1 test^python

	- name: ClojureScript Step Tests
	run: make test^cljs

	- name: ClojureScript Regression Tests
	run: make REGRESS=1 test^cljs

	- name: Generate stats
	run: \|
	make stats # Build compressed artifacts
	echo "### JavaScript stats" >> $GITHUB_STEP_SUMMARY
	echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
	make stats^js >> $GITHUB_STEP_SUMMARY
	echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
	echo "### Python stats" >> $GITHUB_STEP_SUMMARY
	echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
	make stats^python >> $GITHUB_STEP_SUMMARY
	echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
	echo "### ClojureScript stats" >> $GITHUB_STEP_SUMMARY
	echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
	make stats^cljs >> $GITHUB_STEP_SUMMARY
	echo "\`\`\`" >> $GITHUB_STEP_SUMMARY

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