feat: use blockstore sessions #139

Job	Run time
js-test-and-release / check	2m 57s
js-test-and-release / test-firefox-webworker	1m 46s
js-test-and-release / test-chrome-webworker	2m 2s
js-test-and-release / test-firefox	1m 49s
js-test-and-release / test-chrome	1m 51s
js-test-and-release / test-node (windows-latest, lts/*)	1m 59s
js-test-and-release / test-webkit (ubuntu-latest, lts/*)	1m 11s
js-test-and-release / test-node (ubuntu-latest, lts/*)	1m 47s
js-test-and-release / test-webkit-webworker (ubuntu-latest, lts/*)	1m 4s
js-test-and-release / test-webkit (macos-latest, lts/*)	3m 51s
js-test-and-release / test-node (macos-latest, lts/*)	2m 10s
js-test-and-release / test-webkit-webworker (macos-latest, lts/*)	3m 35s
js-test-and-release / test-electron-main	1m 47s
js-test-and-release / test-electron-renderer	20s
js-test-and-release / release-check	0s
js-test-and-release / release	0s
	28m 9s

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