chore(deps): update dependency postcss to v8.4.48 (#547) #1871

Job	Run time
build-element-template-generation	3m 21s
build-large-multi-instance-example	1m 6s
build-async-service-task	1m 28s
build-parallel-operations	32s
build-react-tasklist	1m 3s
build-payment-example-process-application	1m 8s
build-rollback-on-error-example	49s
build-start-form-springboot	26s
build-synchronous-response-springboot	35s
build-timer-testing	2m 48s
build-twitter-review-java-springboot	1m 4s
build-zeebe-client-plain-java	19s
	14m 39s

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