Bump @testing-library/jest-dom from 5.17.0 to 6.0.0 in /js #1829

Job	Run time
Check conditional workflows and jobs	10s
Databases New Store	1s
Build	0s
Base UT	0s
Base IT	0s
Legacy Clustering IT	0s
Java Distribution IT	0s
Legacy Store IT	0s
Quarkus IT	0s
Store Model Tests	0s
Account Console IT	0s
FIPS IT	0s
FIPS UT	0s
Forms IT	0s
SSSD	0s
WebAuthn IT	0s
Migration Tests	0s
New Store IT	0s
Set check conclusion	0s
Status Check - Keycloak CI	5s
	16s

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