Bump azure-storage-blob in /plugins/repository-azure

Bumps [azure-storage-blob](https://github.com/Azure/azure-sdk-for-java) from 12.16.1 to 12.20.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-java/releases)
- [Commits](Azure/azure-sdk-for-java@azure-storage-blob_12.16.1...azure-storage-blob_12.20.0)

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

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

plugins/repository-azure/build.gradle

@@ -54,7 +54,7 @@ dependencies {
   api "io.netty:netty-resolver-dns:${versions.netty}"
   api "io.netty:netty-transport-native-unix-common:${versions.netty}"
   implementation project(':modules:transport-netty4')
-  api 'com.azure:azure-storage-blob:12.16.1'
+  api 'com.azure:azure-storage-blob:12.20.0'
   api 'org.reactivestreams:reactive-streams:1.0.4'
   api 'io.projectreactor:reactor-core:3.4.23'
   api 'io.projectreactor.netty:reactor-netty:1.0.18'