Fix build

Two modules are still relying on the spring-boot test-jar but it was
not generated anymore. Adding the generation of test-jar again as
a workaround until we completely removes the use of it.

spring-boot-actuator/pom.xml

@@ -128,7 +128,7 @@
 			<groupId>${project.groupId}</groupId>
 			<artifactId>spring-boot</artifactId>
 			<version>${project.version}</version>
-			<classifier>tests</classifier>
+			<type>test-jar</type>
 			<scope>test</scope>
 		</dependency>
 		<dependency>

spring-boot-autoconfigure/pom.xml

@@ -227,7 +227,7 @@
 			<groupId>${project.groupId}</groupId>
 			<artifactId>spring-boot</artifactId>
 			<version>${project.version}</version>
-			<classifier>tests</classifier>
+			<type>test-jar</type>
 			<scope>test</scope>
 		</dependency>
 		<dependency>

spring-boot/pom.xml

@@ -156,4 +156,27 @@
 			<scope>test</scope>
 		</dependency>
 	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-jar-plugin</artifactId>
+				<executions>
+					<execution>
+						<goals>
+							<goal>test-jar</goal>
+						</goals>
+						<configuration>
+							<excludes>
+								<exclude>**/*.properties</exclude>
+								<exclude>**/*.xml</exclude>
+								<exclude>**/*.yml</exclude>
+							</excludes>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
 </project>