Add missing boot configuration processor

Author: jvalkeal

spring-shell-autoconfigure/pom.xml

@@ -41,5 +41,10 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-configuration-processor</artifactId>
+			<optional>true</optional>
+		</dependency>
 	</dependencies>
 </project>