build(deps): bump io.freefair.maven-central.validate-poms

Bumps [io.freefair.maven-central.validate-poms](https://github.com/freefair/gradle-plugins) from 6.5.0.3 to 6.5.1.
- [Release notes](https://github.com/freefair/gradle-plugins/releases)
- [Commits](freefair/gradle-plugins@6.5.0.3...6.5.1)

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

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

build.gradle.kts

@@ -13,7 +13,7 @@ plugins {
     id("io.freefair.javadoc-links") version "6.5.1"
     id("io.freefair.javadoc-utf-8") version "6.5.1"
     id("io.freefair.aspectj.post-compile-weaving") version "6.5.1"
-    id("io.freefair.maven-central.validate-poms") version "6.5.0.3"
+    id("io.freefair.maven-central.validate-poms") version "6.5.1"
     id("me.qoomon.git-versioning") version "6.3.0"
     id("com.github.ben-manes.versions") version "0.42.0"
     id("org.springframework.boot") version "2.6.7"