Fix banner text configuration. (#433)

Author: QilongZhang

infra-sofa-boot-starter/src/main/resources/banner.txt

@@ -9,4 +9,4 @@ ${AnsiColor.BRIGHT_RED}
 Spring Boot Version: ${spring-boot.version}${spring-boot.formatted-version}
 SOFABoot Version: ${sofa-boot.version}${sofa-boot.formatted-version}
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-${AnsiColor.BLACK}
+${AnsiColor.DEFAULT}