chore(deps): remove unused com.github.stefanbirkner dependency

Author: JynLeazy1

extended/pom.xml

@@ -66,11 +66,6 @@
             <artifactId>mockito-junit-jupiter</artifactId>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>com.github.stefanbirkner</groupId>
-            <artifactId>system-lambda</artifactId>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.wiremock</groupId>
             <artifactId>wiremock</artifactId>

pom.xml

@@ -279,12 +279,6 @@
         <version>5.15.2</version>
         <scope>test</scope>
       </dependency>
-      <dependency>
-        <groupId>com.github.stefanbirkner</groupId>
-        <artifactId>system-lambda</artifactId>
-        <version>1.2.1</version>
-        <scope>test</scope>
-      </dependency>
       <dependency>
         <groupId>uk.org.webcompere</groupId>
         <artifactId>system-stubs-jupiter</artifactId>