fix(deps): update react monorepo to v19.2.8 #26904

Job	Run time
reuse-compliance	9s
check-bundle-size	3m 17s
lint	2m 8s
build / Build (18)	2m 30s
build / Build (19)	1m 42s
deploy-next-docs	1m 59s
test / Playwright (18)	3m 5s
test / Playwright (19)	2m 52s
test / MCP Server	2m 32s
test / Cypress (cypress-commands, 19)	2m 11s
test / Cypress (base, 19)	2m 45s
test / Cypress (compat, 19)	1m 57s
test / Cypress (main/src/webComponents, 19)	1m 42s
test / Cypress (cypress-commands, 18)	2m 17s
test / Cypress (main/src/internal, 18)	2m 7s
test / Cypress (main/src/components, 19)	7m 34s
test / Cypress (main/src/internal, 19)	1m 52s
test / Cypress (main/src/webComponents, 18)	2m 30s
test / Cypress (main/src/components, 18)	8m 23s
test / Cypress (base, 18)	2m 55s
test / Cypress (compat, 18)	3m 1s
test / Combine Coverage	3s
	59m 31s

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