Bump spring-webflux from 5.0.8.RELEASE to 5.1.0.RELEASE in /samples/client/petstore/java/webclient (#5071)

* Bump spring-webflux in /samples/client/petstore/java/webclient

Bumps [spring-webflux](https://github.com/spring-projects/spring-framework) from 5.0.8.RELEASE to 5.1.0.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v5.0.8.RELEASE...v5.1.0.RELEASE)

Signed-off-by: dependabot[bot] <[email protected]>

* Bump spring-webflux version from 5.0.8 to 5.0.16

ref https://pivotal.io/security/cve-2020-5398

Co-authored-by: Akihito Nakano <[email protected]>

Author: 2 people

modules/openapi-generator/src/main/resources/Java/libraries/webclient/pom.mustache

@@ -142,7 +142,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <swagger-annotations-version>1.5.22</swagger-annotations-version>
-        <spring-web-version>5.0.8.RELEASE</spring-web-version>
+        <spring-web-version>5.0.16.RELEASE</spring-web-version>
         <jackson-version>2.10.1</jackson-version>
         <jackson-databind-version>2.10.1</jackson-databind-version>
         <jackson-databind-nullable-version>0.2.1</jackson-databind-nullable-version>

samples/client/petstore/java/webclient/pom.xml

@@ -121,7 +121,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <swagger-annotations-version>1.5.22</swagger-annotations-version>
-        <spring-web-version>5.0.8.RELEASE</spring-web-version>
+        <spring-web-version>5.0.16.RELEASE</spring-web-version>
         <jackson-version>2.10.1</jackson-version>
         <jackson-databind-version>2.10.1</jackson-databind-version>
         <jackson-databind-nullable-version>0.2.1</jackson-databind-nullable-version>