chore: release version 4.33.0 (#535)

Author: olavloite

README.md

@@ -19,6 +19,9 @@ an example.
 
 ## Release Notes
 
+#### 4.33.0
+* Requires Liquibase 4.33.0
+
 #### 4.32.0
 * Requires Liquibase 4.32.0
 

pom.xml

@@ -24,12 +24,6 @@
       <organizationUrl>https://github.com/olavloite</organizationUrl>
     </developer>
   </developers>
-  <distributionManagement>
-    <snapshotRepository>
-      <id>ossrh</id>
-      <url>https://google.oss.sonatype.org/content/repositories/snapshots</url>
-    </snapshotRepository>
-  </distributionManagement>
   <scm>
     <connection>scm:git:[email protected]:cloudspannerecosystem/liquibase-spanner.git</connection>
     <developerConnection>scm:git:[email protected]:cloudspannerecosystem/liquibase-spanner.git</developerConnection>
@@ -216,14 +210,13 @@
     <pluginManagement>
       <plugins>
         <plugin>
-          <groupId>org.sonatype.plugins</groupId>
-          <artifactId>nexus-staging-maven-plugin</artifactId>
-          <version>1.7.0</version>
+          <groupId>org.sonatype.central</groupId>
+          <artifactId>central-publishing-maven-plugin</artifactId>
+          <version>0.8.0</version>
           <extensions>true</extensions>
           <configuration>
-            <serverId>ossrh</serverId>
-            <nexusUrl>https://oss.sonatype.org/</nexusUrl>
-            <autoReleaseAfterClose>true</autoReleaseAfterClose>
+            <publishingServerId>central</publishingServerId>
+            <autoPublish>true</autoPublish>
           </configuration>
         </plugin>
         <plugin>
@@ -334,8 +327,8 @@
       <build>
         <plugins>
           <plugin>
-            <groupId>org.sonatype.plugins</groupId>
-            <artifactId>nexus-staging-maven-plugin</artifactId>
+            <groupId>org.sonatype.central</groupId>
+            <artifactId>central-publishing-maven-plugin</artifactId>
           </plugin>
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
@@ -387,21 +380,6 @@
         </plugins>
       </build>
     </profile>
-    <profile>
-      <id>allow-snapshots</id>
-      <repositories>
-        <repository>
-          <id>sonatype-snapshots</id>
-          <url>https://google.oss.sonatype.org/content/repositories/snapshots</url>
-          <releases>
-            <enabled>false</enabled>
-          </releases>
-          <snapshots>
-            <enabled>true</enabled>
-          </snapshots>
-        </repository>
-      </repositories>
-    </profile>
     <profile>
       <id>surefire-java8</id>
       <activation>