Update dependency org.grails:grails-bom to v5.2.2 (#536)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle.properties

@@ -16,7 +16,7 @@ junitJupiterVersion=5.9.0
 mongoJavaServerVersion=1.28.0
 mongodbDriverVersion=4.5.0
 mongodbRxDriverVersion=1.10.0
-pluginGrailsVersion=5.1.8
+pluginGrailsVersion=5.2.2
 projectVersion=7.3.1-SNAPSHOT
 seleniumSafariDriverVersion=3.14.0
 seleniumVersion=3.14.0