chore(deps): Update dependency net.sourceforge.pmd:pmd-java to v7

Author: renovate[bot]

gradle/libs.versions.toml

@@ -9,7 +9,7 @@ indra = "3.1.3"
 junit="5.10.3"
 ktlint="0.49.1"
 ktfmt="0.49"
-pmd = "6.55.0"
+pmd = "7.7.0"
 spotless = "6.25.0"
 
 [libraries]