Move FindBugs version management to gradle/dependency-management.gradle.

gradle.properties

@@ -2,7 +2,6 @@ org.gradle.jvmargs=-Xmx2g -Dfile.encoding=UTF-8
 deployDocsHost=docs-ip.spring.io
 antlrVersion = 2.7.7
 apacheGeodeVersion=1.14.4
-findbugsVersion=3.0.2
 springVersion=5.3.20
 springBootVersion=2.7.0-RC1
 springDataBomVersion=2021.2.0

gradle/dependency-management.gradle

@@ -1,8 +1,9 @@
 // Define dependency version properties
-ext['apacheTaglibsVersion'] = '1.2.5'
-ext['assertjVersion'] = '3.22.0'
 ext['jakartaServletApiVersion'] ='4.0.4'
 ext['jakartaServletJspJstlApiVersion'] = '1.2.7'
+ext['apacheTaglibsVersion'] = '1.2.5'
+ext['assertjVersion'] = '3.22.0'
+ext['findbugsVersion'] = '3.0.2'
 ext['log4jVersion'] = '2.17.2'
 // Logback version is currently constrained by tbe Gretty Gradle Plugin.
 // See: https://github.com/gretty-gradle-plugin/gretty/blob/v4.0.0/gradle.properties#L16