Bump spring-context from 5.3.20 to 5.3.21 (#111)

Bumps [spring-context](https://github.com/spring-projects/spring-framework) from 5.3.20 to 5.3.21.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v5.3.20...v5.3.21)

---
updated-dependencies:
- dependency-name: org.springframework:spring-context
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -94,7 +94,7 @@
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-context</artifactId>
-      <version>5.3.20</version>
+      <version>5.3.21</version>
       <optional>true</optional>
     </dependency>