Maven 部署时指定 gpg 的 keyname

如果本地有多个 gpg key, 使用 keyname 来指定

        <profile>
            <id>ossrh</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <properties>
                <gpg.executable>/usr/local/MacGPG2/bin/gpg2</gpg.executable>
                <gpg.passphrase>***********</gpg.passphrase>
                <gpg.keyname>38342284BEA1A85C</gpg.keyname>
            </properties>
        </profile>