fix: override version of io.strimzi:kafka-oauth-common (#4885)

For some reason, the dependency tree was:

+- io.strimzi:kafka-oauth-client:jar:0.15.0:compile
|  \- io.strimzi:kafka-oauth-common:jar:0.14.0:compile

I couldn't find out why.

Author: jsenko

pom.xml

@@ -695,6 +695,12 @@
                 <version>${kafka-oauth-client.version}</version>
             </dependency>
 
+            <dependency>
+                <groupId>io.strimzi</groupId>
+                <artifactId>kafka-oauth-common</artifactId>
+                <version>${kafka-oauth-client.version}</version>
+            </dependency>
+
             <dependency>
                 <groupId>com.google.guava</groupId>
                 <artifactId>guava</artifactId>