build: update rules_browsers digest to 8231142 #3095

Job	Run time
list	23s
workflow (devkit-core-tests-rerun)	1m 30s
workflow (modules-builder-tests)	1m 49s
workflow (devkit-core-tests)	1m 41s
workflow (build-cli)	1m 51s
workflow (build-unit-tests)	2m 39s
	9m 53s

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