Bump io.freefair.maven-central.validate-poms from 9.0.0 to 9.1.0

Bumps [io.freefair.maven-central.validate-poms](https://github.com/freefair/gradle-plugins) from 9.0.0 to 9.1.0.
- [Release notes](https://github.com/freefair/gradle-plugins/releases)
- [Commits](freefair/gradle-plugins@9.0.0...9.1.0)

---
updated-dependencies:
- dependency-name: io.freefair.maven-central.validate-poms
  dependency-version: 9.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

build.gradle.kts

@@ -9,7 +9,7 @@ plugins {
   id("signing")
   id("com.github.ben-manes.versions") version "0.53.0"
   id("org.sonatype.gradle.plugins.scan") version "3.1.4"
-  id("io.freefair.maven-central.validate-poms") version "9.0.0"
+  id("io.freefair.maven-central.validate-poms") version "9.1.0"
   id("io.github.gradle-nexus.publish-plugin") version "2.0.0"
 }