Bump @testing-library/react from 14.1.2 to 14.2.1 #1556

Job	Run time
Pre run	6s
Lint: JS	1m 18s
Lint: CSS	1m 10s
E2E test: JS (1, 2)	12m 16s
Lint: PHP	0s
Static Analysis: PHP	0s
E2E test: JS (2, 2)	11m 36s
Unit test: JS	1m 28s
Feature tests: PHP ${{ matrix.php }}, WP ${{ matrix.wp }}	0s
Unit test: PHP 8.0, WP latest	25s
Unit test: PHP 8.3, WP trunk	20s
Build: ${{ matrix.build }} build ZIP	0s
Unit test: PHP 8.2, WP trunk	23s
Unit test: PHP 8.1, WP trunk	22s
Unit test: PHP 8.0, WP trunk	22s
Unit test (with coverage): PHP 8.0, WP latest	25s
Unit test: PHP 8.0, WP latest	22s
Unit test: PHP 7.4, WP latest	21s
Unit test: PHP 7.4, WP latest	23s
Unit test: PHP 7.4, WP 5.3	20s
Unit test: PHP 7.4, WP 5.3	21s
Upload plugin ZIPs to Google Cloud Storage	0s
Comment on PR with links to plugin ZIPs	0s
	31m 58s

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