Bump junit from 4.13 to 4.13.1 in /gwt-editor-processor

Bumps [junit](https://github.com/junit-team/junit4) from 4.13 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.13.1.md)
- [Commits](junit-team/junit4@r4.13...r4.13.1)

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

Author: dependabot[bot]

gwt-editor-processor/pom.xml

@@ -55,7 +55,7 @@
         <gwt.version>2.8.2</gwt.version>
         <javapoet.version>1.12.1</javapoet.version>
         <compile.testing.version>0.18</compile.testing.version>
-        <junit.version>4.13</junit.version>
+        <junit.version>4.13.1</junit.version>
         <org.truth.version>0.23</org.truth.version>
         <truth.version>1.0</truth.version>