Bump com.azure.spring:spring-cloud-azure-starter-data-cosmos

Bumps the maven-dependencies group with 1 update: [com.azure.spring:spring-cloud-azure-starter-data-cosmos](https://github.com/Azure/azure-sdk-for-java).


Updates `com.azure.spring:spring-cloud-azure-starter-data-cosmos` from 5.20.1 to 5.21.0
- [Release notes](https://github.com/Azure/azure-sdk-for-java/releases)
- [Commits](Azure/azure-sdk-for-java@spring-cloud-azure_5.20.1...spring-cloud-azure_5.21.0)

---
updated-dependencies:
- dependency-name: com.azure.spring:spring-cloud-azure-starter-data-cosmos
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: maven-dependencies
...

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

Author: dependabot[bot]

axon-cosmosdb-spring-boot-3-integrationtests/pom.xml

@@ -40,7 +40,7 @@
     <properties>
         <axon.version>4.10.0</axon.version>
         <testcontainers.version>1.20.6</testcontainers.version>
-        <spring-cloud-azure.version>5.20.1</spring-cloud-azure.version>
+        <spring-cloud-azure.version>5.21.0</spring-cloud-azure.version>
         <!-- Build / Plugin -->
         <jacoco-maven.version>0.8.11</jacoco-maven.version>
         <maven-jar.version>3.4.2</maven-jar.version>