Bump junit-pioneer from 1.9.0 to 1.9.1 (#7348)

Author: dependabot[bot]

dependencyManagement/build.gradle.kts

@@ -98,7 +98,7 @@ val DEPENDENCIES = listOf(
   "org.apache.groovy:groovy:${groovyVersion}",
   "org.apache.groovy:groovy-json:${groovyVersion}",
   "org.codehaus.mojo:animal-sniffer-annotations:1.22",
-  "org.junit-pioneer:junit-pioneer:1.9.0",
+  "org.junit-pioneer:junit-pioneer:1.9.1",
   "org.objenesis:objenesis:3.3",
   // Note that this is only referenced as "org.springframework.boot" in build files, not the artifact name.
   "org.springframework.boot:spring-boot-dependencies:2.7.5",