fix(deps): update dependency com.aayushatharva.brotli4j:brotli4j to v1.20.0 #6416

Job	Run time
build_matrix	1m 58s
build (21, test-suite-annotation-remapper:nativeTest)	6m 34s
build (21, test-suite-netty-ssl-graalvm:nativeTest)	6m 33s
build (21, test-suite-http-server-tck-netty:nativeTest)	7m 23s
build (21, test-suite-logback-graalvm:nativeTest)	5m 37s
build (21, test-suite-kotlin-graalvm:nativeTest)	6m 45s
build (21, test-suite-http2-server-tck-netty:nativeTest)	9m 47s
	44m 37s

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