No versions available for io.grpc:grpc-core:jar:[1.13.1] within specified range

maven打包的时候报错是由于同一个jar包有多个版本导致的版本冲突

解决方案：

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>io.grpc</groupId>
            <artifactId>grpc-core</artifactId>
            <version>1.13.1</version>
        </dependency>
        <dependency>
            <groupId>com.google.firebase</groupId>
            <artifactId>firebase-admin</artifactId>
            <version>6.6.0</version>
        </dependency>
    </dependencies>
</dependencyManagement>

将多版本冲突的jar包放在dependencyManagement中即可解决