Bump azure-storage-blob to 12.33.4 to satisfy version_client.txt

After merging main, eng/versioning/version_client.txt expects azure-storage-blob 12.33.4 but pom.xml still pinned 12.33.3, causing the 'Verify versions in POM files' pipeline step to fail.

Author: changjian-wang

sdk/contentunderstanding/azure-ai-contentunderstanding/pom.xml

@@ -78,7 +78,7 @@
     <dependency>
       <groupId>com.azure</groupId>
       <artifactId>azure-storage-blob</artifactId>
-      <version>12.33.3</version> <!-- {x-version-update;com.azure:azure-storage-blob;dependency} -->
+      <version>12.33.4</version> <!-- {x-version-update;com.azure:azure-storage-blob;dependency} -->
     </dependency>
   </dependencies>