Update plugin com.diffplug.spotless to v7 #16315

Job	Run time
audit-licenses-backend	32s
audit-licenses-frontend	24s
backend-build-image-and-scan	2m 33s
backend-build	51s
frontend-build-image-and-scan	1m 39s
generate-backend-code-documentation	1m 6s
generate-entity-relationship-diagram	0s
prep-playwright-tests	0s
backend-checks / scan-backend-changes	3s
frontend-checks / scan-frontend-changes	3s
frontend-checks / analyze-frontend	0s
frontend-checks / frontend-style	0s
frontend-checks / frontend-tests	0s
backend-checks / backend-unit-tests	1m 38s
backend-checks / backend-integration-tests	3m 47s
backend-checks / analyze-backend	0s
push-frontend-image-to-registry	0s
push-backend-image-to-registry	0s
deploy-staging	0s
e2e-tests	0s
query-performance-tests	0s
generate-test-reports	0s
check-latest-deploy-tag	0s
push-reports	0s
deploy-production	0s
deploy-uat	0s
	12m 36s

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