Bump jcasgen-maven-plugin from 2.8.1 to 3.1.1

Bumps [jcasgen-maven-plugin](https://github.com/apache/uima-uimaj) from 2.8.1 to 3.1.1.
- [Release notes](https://github.com/apache/uima-uimaj/releases)
- [Changelog](https://github.com/apache/uima-uimaj/blob/master/RELEASE_NOTES.html)
- [Commits](apache/uima-uimaj@uimaj-2.8.1...uimaj-3.1.1)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

Diff for: pom.xml

@@ -22,7 +22,7 @@
 			<plugin>
 				<groupId>org.apache.uima</groupId>
 				<artifactId>jcasgen-maven-plugin</artifactId>
-				<version>2.8.1</version>  <!-- change this to the latest version -->
+				<version>3.1.1</version>  <!-- change this to the latest version -->
 				<executions>
 					<execution>
 						<id>1</id>
@@ -410,7 +410,7 @@
 					<plugin>
 						<groupId>org.apache.uima</groupId>
 						<artifactId>jcasgen-maven-plugin</artifactId>
-						<version>2.8.1</version>  <!-- change this to the latest version -->
+						<version>3.1.1</version>  <!-- change this to the latest version -->
 						<executions>
 							<execution>
 								<id>3</id>