fix: Error Page Key should consider error messages #4366

Job	Run time
build_matrix	3m 57s
build (17, test-suite-annotation-remapper:nativeTest)	7m 5s
build (17, test-suite-http-server-tck-netty:nativeTest)	7m 50s
build (17, test-suite-http2-server-tck-netty:nativeTest)	9m 53s
build (17, test-suite-kotlin-graalvm:nativeTest)	7m 21s
build (17, test-suite-logback-graalvm:nativeTest)	6m 15s
build (17, test-suite-netty-ssl-graalvm:nativeTest)	7m 32s
build (21, test-suite-annotation-remapper:nativeTest)	7m 14s
build (21, test-suite-http-server-tck-netty:nativeTest)	7m 39s
build (21, test-suite-http2-server-tck-netty:nativeTest)	8m 55s
build (21, test-suite-kotlin-graalvm:nativeTest)	7m 17s
build (21, test-suite-logback-graalvm:nativeTest)	6m 17s
build (21, test-suite-netty-ssl-graalvm:nativeTest)	7m 18s
	1h 34m 33s

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