fix(deps): update dependency org.springframework:spring-context to v5…

… [security]

pom.xml

@@ -86,7 +86,7 @@
     <project.build.target>1.8</project.build.target>
 
     <apache.http.version>4.5.13</apache.http.version>
-    <spring.version>4.3.30.RELEASE</spring.version>
+    <spring.version>5.2.21.RELEASE</spring.version>
     <logback.version>1.2.11</logback.version>
     <junit.version>[4.13.1,)</junit.version>
     <resource-server.version>1.3.1</resource-server.version>