Move Maven Plugin's Maven dependencies into provided scope

Closes gh-378

Author: wilkinsona

Diff for: pom.xml

@@ -50,6 +50,7 @@
 		<junit.version>5.8.1</junit.version>
 		<javassist.version>3.21.0-GA</javassist.version>
 		<picocontainer.version>1.2</picocontainer.version>
+		<plexus-utils.version>3.5.1</plexus-utils.version>
 		<system-rules.version>1.16.0</system-rules.version>
 		<testcontainers.version>1.16.0</testcontainers.version>
 		<trove4j.version>3.0.3</trove4j.version>
@@ -589,6 +590,11 @@
 				<artifactId>picocontainer</artifactId>
 				<version>${picocontainer.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.codehaus.plexus</groupId>
+				<artifactId>plexus-utils</artifactId>
+				<version>${plexus-utils.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.testcontainers</groupId>
 				<artifactId>testcontainers</artifactId>

Diff for: spring-javaformat-maven/spring-javaformat-maven-plugin/pom.xml

@@ -101,15 +101,21 @@
 				</exclusion>
 			</exclusions>
 		</dependency>
+		<dependency>
+			<groupId>org.codehaus.plexus</groupId>
+			<artifactId>plexus-utils</artifactId>
+		</dependency>
+		<!-- Provided -->
 		<dependency>
 			<groupId>org.apache.maven</groupId>
 			<artifactId>maven-core</artifactId>
+			<scope>provided</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.maven</groupId>
 			<artifactId>maven-plugin-api</artifactId>
+			<scope>provided</scope>
 		</dependency>
-		<!-- Provided -->
 		<dependency>
 			<groupId>org.apache.maven.plugin-tools</groupId>
 			<artifactId>maven-plugin-annotations</artifactId>