Bump com.azure:azure-cosmos from 4.49.0 to 4.51.0 in /modules/azure

Bumps [com.azure:azure-cosmos](https://github.com/Azure/azure-sdk-for-java) from 4.49.0 to 4.51.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-java/releases)
- [Commits](Azure/azure-sdk-for-java@azure-cosmos_4.49.0...azure-cosmos_4.51.0)

---
updated-dependencies:
- dependency-name: com.azure:azure-cosmos
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

modules/azure/build.gradle

@@ -6,5 +6,5 @@ dependencies {
     shaded 'com.squareup.okhttp3:okhttp:4.11.0'
 
     testImplementation 'org.assertj:assertj-core:3.24.2'
-    testImplementation 'com.azure:azure-cosmos:4.49.0'
+    testImplementation 'com.azure:azure-cosmos:4.51.0'
 }