pom.xml(sortpom-maven-plugin): update to 2.5.0

@see https://github.com/Ekryd/sortpom#news

No functional changes.

Author: php-coder

pom.xml

@@ -412,7 +412,7 @@
 		<!-- Redefine default value from spring-boot-dependencies (https://git.io/vKAiK) -->
 		<slf4j.version>1.7.21</slf4j.version>
 
-		<sortpom.plugin.version>2.4.0</sortpom.plugin.version>
+		<sortpom.plugin.version>2.5.0</sortpom.plugin.version>
 
 		<!-- Redefine default value from spring-boot-dependencies (https://git.io/vKAiK) -->
 		<spock.version>1.0-groovy-2.0</spock.version>