Merge pull request #1147 from swagger-api/spring-mvn-version-update

updated spring core version to avoid reported vulnerabilities

Author: HugoMario

src/main/resources/handlebars/JavaSpring/libraries/spring-mvc/pom.mustache

@@ -239,7 +239,7 @@
         <jetty-version>9.3.28.v20191105</jetty-version>
         <slf4j-version>1.7.21</slf4j-version>
         <junit-version>4.13.1</junit-version>
-        <servlet-api-version>{{#jakarta}}6.0.0{{/jakarta}}{{^jakarta}}3.1.0{{/jakarta}}</servlet-api-version>
+        <servlet-api-version>{{#jakarta}}6.0.0{{/jakarta}}{{^jakarta}}2.5{{/jakarta}}</servlet-api-version>
         {{#useOas2}}
         <springfox-version>2.9.2</springfox-version>
         {{/useOas2}}
@@ -248,6 +248,6 @@
         {{/useOas2}}
         <jackson-version>2.9.10</jackson-version>
         <jackson-threetenbp-version>2.9.10</jackson-threetenbp-version>
-        <spring-version>5.0.18.RELEASE</spring-version>
+        <spring-version>5.3.27</spring-version>
     </properties>
 </project>