Revert "Bump the klass-api group across 1 directory with 6 updates (#498)" (#513)

This reverts commit 43b080d.

Author: mmwinther

klass-api/pom.xml

@@ -77,23 +77,23 @@
         <dependency>
             <groupId>org.flywaydb</groupId>
             <artifactId>flyway-database-postgresql</artifactId>
-            <version>12.0.0</version>
+            <version>11.20.0</version>
             <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>org.flywaydb</groupId>
             <artifactId>flyway-core</artifactId>
-            <version>12.0.0</version>
+            <version>11.20.0</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback.access</groupId>
             <artifactId>logback-access-common</artifactId>
-            <version>2.0.9</version>
+            <version>2.0.7</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback.access</groupId>
             <artifactId>logback-access-tomcat</artifactId>
-            <version>2.0.9</version>
+            <version>2.0.7</version>
         </dependency>
         <dependency>
             <groupId>net.logstash.logback</groupId>
@@ -214,7 +214,7 @@
                     <plugin>
                         <groupId>org.flywaydb</groupId>
                         <artifactId>flyway-maven-plugin</artifactId>
-                        <version>12.0.0</version>
+                        <version>11.20.0</version>
                     </plugin>
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>