chore(pom.xml): revert version from 0.4.0-SNAPSHOT to 0.3.4-SNAPSHOT to align with project dependencies (#122)

refactor(pom.xml): remove maven-assembly-plugin and maven-shade-plugin as they are no longer needed for the project build process

Author: jandroav

Diff for: pom.xml

@@ -4,7 +4,7 @@
     <groupId>org.liquibase</groupId>
     <artifactId>liquibase-parent-pom</artifactId>
     <name>Liquibase Parent POM</name>
-    <version>0.4.0-SNAPSHOT</version>
+    <version>0.3.4-SNAPSHOT</version>
     <description>Liquibase Parent POM for all Extensions</description>
     <url>https://github.com/liquibase/liquibase-parent-pom</url>
     <packaging>pom</packaging>
@@ -300,34 +300,6 @@
             </resource>
         </resources>
         <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-assembly-plugin</artifactId>
-                <version>${maven-assembly-plugin.version}</version>
-                <configuration>
-                    <archive>
-                        <manifestEntries>
-                            <Implementation-Title>${project.name}</Implementation-Title>
-                            <Bundle-Vendor>Liquibase</Bundle-Vendor>
-                            <Bundle-Version>${project.version}</Bundle-Version>
-                        </manifestEntries>
-                    </archive>
-                    <appendAssemblyId>false</appendAssemblyId>
-                    <descriptorRefs>
-                        <descriptorRef>jar-with-dependencies</descriptorRef>
-                    </descriptorRefs>
-                    <finalName>${project.artifactId}-${project.version}</finalName>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>assemble-all</id>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>single</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
             <plugin>
                 <artifactId>maven-resources-plugin</artifactId>
                 <version>${maven-resources-plugin.version}</version>
@@ -455,58 +427,6 @@
                     </execution>
                 </executions>
             </plugin>
-            <plugin>
-                <artifactId>maven-shade-plugin</artifactId>
-                <version>${maven-shade-plugin.version}</version>
-                <executions>
-                    <execution>
-                        <id>über-jar</id>
-                        <goals>
-                            <goal>shade</goal>
-                        </goals>
-                        <configuration>
-                            <createDependencyReducedPom>false</createDependencyReducedPom>
-                            <shadedArtifactAttached>true</shadedArtifactAttached>
-                            <shadedClassifierName>full</shadedClassifierName>
-                            <filters>
-                                <filter>
-                                    <artifact>*:*</artifact>
-                                    <excludes>
-                                        <exclude>**/module-info.class</exclude>
-                                        <exclude>META-INF/MANIFEST.MF</exclude>
-                                        <exclude>empty.txt</exclude>
-                                    </excludes>
-                                </filter>
-                            </filters>
-                            <transformers>
-                                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
-                                <transformer implementation="org.apache.maven.plugins.shade.resource.ApacheLicenseResourceTransformer" />
-                                <transformer implementation="org.apache.maven.plugins.shade.resource.ApacheNoticeResourceTransformer">
-                                    <addHeader>false</addHeader>
-                                </transformer>
-                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                    <manifestEntries>
-                                        <Implementation-Title>${project.artifactId}-${project.version}</Implementation-Title>
-                                        <Bundle-Vendor>Liquibase</Bundle-Vendor>
-                                        <Bundle-Version>${project.version}</Bundle-Version>
-                                    </manifestEntries>
-                                </transformer>
-                            </transformers>
-                            <filters>
-                                <filter>
-                                    <!-- filter out signature files from signed dependencies, else repackaging fails with security ex -->
-                                    <artifact>*:*</artifact>
-                                    <excludes>
-                                        <exclude>META-INF/*.SF</exclude>
-                                        <exclude>META-INF/*.DSA</exclude>
-                                        <exclude>META-INF/*.RSA</exclude>
-                                    </excludes>
-                                </filter>
-                            </filters>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
             <plugin>
                 <groupId>org.sonatype.plugins</groupId>
                 <artifactId>nexus-staging-maven-plugin</artifactId>