Migrate React eslint to flat config #31347

Job	Run time
build-matrix	7s
vue-default (n20.15.1/j21)	1m 44s
vue-default-additional (n20/j21)	1m 26s
vue-noi18n-mysql-ws-oauth2 (n20/j21)	2m 2s
vue-fulli18n-mysql-es (n20/j22)	1m 41s
vue-gradle-h2mem-ws-session (n20.15.1/j17)	1m 30s
vue-h2disk-ws-theme (n20/j17)	1m 43s
vue-session-cassandra-fr (n20.15.1/j17)	1m 17s
ms-mf-vue-consul-oauth2-mysql-memcached (n20/j21)	16m 48s
stack-vue-no-db (n18/j22)	2m 13s
check-vue	1s
	30m 32s

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