[pom] Update paimon shade to 0.4.0-incubating (#1326)

pom.xml

@@ -70,7 +70,7 @@ under the License.
 
     <properties>
         <project.build.outputTimestamp>2023-05-04T05:07:22Z</project.build.outputTimestamp>
-        <paimon.shade.version>0.4-SNAPSHOT</paimon.shade.version>
+        <paimon.shade.version>0.4.0-incubating</paimon.shade.version>
         <paimon.shade.jackson.version>2.14.2</paimon.shade.jackson.version>
         <paimon.shade.guava.version>30.1.1-jre</paimon.shade.guava.version>
         <paimon.shade.caffeine.version>2.9.3</paimon.shade.caffeine.version>
@@ -882,24 +882,4 @@ under the License.
             </plugins>
         </pluginManagement>
     </build>
-
-    <!--
-    Uncomment the following "repositories" tag if your maven fails to download paimon-bundle snapshot files.
-    We comment these tags by default because downloading from apache repositories is very slow for both github and developers.
-    -->
-
-    <!--
-    <repositories>
-        <repository>
-            <id>apache-releases</id>
-            <name>apache releases</name>
-            <url>https://repository.apache.org/content/repositories/releases/</url>
-        </repository>
-        <repository>
-            <id>apache-snapshots</id>
-            <name>apache snapshots</name>
-            <url>https://repository.apache.org/content/repositories/snapshots/</url>
-        </repository>
-    </repositories>
-    -->
 </project>