Fix spelling error in maven plugin name

spring-boot-ups/spring-boot-up-parent/pom.xml

@@ -282,7 +282,7 @@
 				<!-- Support our own packaging plugin -->
 				<plugin>
 					<groupId>org.springframework.boot</groupId>
-					<artifactId>spring-package-maven-plugin</artifactId>
+					<artifactId>spring-boot-maven-plugin</artifactId>
 					<version>${spring.boot.version}</version>
 					<executions>
 						<execution>

spring-boot-ups/src/main/parent/pom.xml

@@ -282,7 +282,7 @@
 				<!-- Support our own packaging plugin -->
 				<plugin>
 					<groupId>org.springframework.boot</groupId>
-					<artifactId>spring-package-maven-plugin</artifactId>
+					<artifactId>spring-boot-maven-plugin</artifactId>
 					<version>${spring.boot.version}</version>
 					<executions>
 						<execution>