Bump org.springframework:spring-web

Bumps [org.springframework:spring-web](https://github.com/spring-projects/spring-framework) from 6.1.20 to 6.1.21.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v6.1.20...v6.1.21)

---
updated-dependencies:
- dependency-name: org.springframework:spring-web
  dependency-version: 6.1.21
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

samples/client/petstore/java/resttemplate-jakarta/pom.xml

@@ -277,7 +277,7 @@
         <jackson-version>2.17.1</jackson-version>
         <jackson-databind-version>2.17.1</jackson-databind-version>
         <jackson-databind-nullable-version>0.2.6</jackson-databind-nullable-version>
-        <spring-web-version>6.1.20</spring-web-version>
+        <spring-web-version>6.1.21</spring-web-version>
         <jakarta-annotation-version>2.1.1</jakarta-annotation-version>
         <beanvalidation-version>3.0.2</beanvalidation-version>
         <junit-version>5.10.2</junit-version>