GH-1070 - Remove dependency to Commons Logging.

The Structurizr Core library depended on by the documentation support artifact pulls in Commons Logging which conflicts with Spring Frameworks spring-jcl artifact. We now explicitly exclude the former to prevent warning logs at runtime.

spring-modulith-docs/pom.xml

@@ -27,6 +27,12 @@
 			<groupId>com.structurizr</groupId>
 			<artifactId>structurizr-core</artifactId>
 			<version>1.29.0</version>
+			<exclusions>
+				<exclusion>
+					<groupId>commons-logging</groupId>
+					<artifactId>commons-logging</artifactId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 
 		<dependency>