update snapshot version (#43)

Author: Nicole00

connector/pom.xml

@@ -5,15 +5,15 @@
     <parent>
         <artifactId>nebula-flink</artifactId>
         <groupId>com.vesoft</groupId>
-        <version>2.0-SNAPSHOT</version>
+        <version>3.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>nebula-flink-connector</artifactId>
 
     <properties>
-        <nebula.version>2.0.0-SNAPSHOT</nebula.version>
+        <nebula.version>3.0-SNAPSHOT</nebula.version>
         <flink.version>1.11.3</flink.version>
         <scala.binary.version>2.11</scala.binary.version>
         <compiler.source.version>1.8</compiler.source.version>
@@ -82,6 +82,17 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.sonatype.plugins</groupId>
+                <artifactId>nexus-staging-maven-plugin</artifactId>
+                <version>1.6.8</version>
+                <extensions>true</extensions>
+                <configuration>
+                    <serverId>ossrh</serverId>
+                    <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+                    <autoReleaseAfterClose>true</autoReleaseAfterClose>
+                </configuration>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>

example/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>nebula-flink</artifactId>
         <groupId>com.vesoft</groupId>
-        <version>2.0-SNAPSHOT</version>
+        <version>3.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -16,7 +16,7 @@
         <dependency>
             <groupId>com.vesoft</groupId>
             <artifactId>nebula-flink-connector</artifactId>
-            <version>2.0-SNAPSHOT</version>
+            <version>${project.version}</version>
         </dependency>
 
         <dependency>

pom.xml

@@ -7,7 +7,7 @@
     <groupId>com.vesoft</groupId>
     <artifactId>nebula-flink</artifactId>
     <packaging>pom</packaging>
-    <version>2.0-SNAPSHOT</version>
+    <version>3.0-SNAPSHOT</version>
 
     <modules>
         <module>connector</module>