fix(deps): update spring.version [security]

Author: renovate[bot]

pom.xml

@@ -83,7 +83,7 @@
         <resource-server.version>1.3.1</resource-server.version>
         <servlet-api.version>4.0.1</servlet-api.version>
         <slf4jVersion>2.0.16</slf4jVersion>
-        <spring.version>4.3.30.RELEASE</spring.version>
+        <spring.version>5.2.21.RELEASE</spring.version>
         <spring-ws.version>2.4.7.RELEASE</spring-ws.version>
         <uportal-libs.version>5.13.1</uportal-libs.version>
         <uportal-maven-plugin.version>1.0.1</uportal-maven-plugin.version>