Bump adal4j from 1.6.5 to 1.6.6

Bumps [adal4j](https://github.com/AzureAD/azure-activedirectory-library-for-java) from 1.6.5 to 1.6.6.
- [Release notes](https://github.com/AzureAD/azure-activedirectory-library-for-java/releases)
- [Changelog](https://github.com/AzureAD/azure-activedirectory-library-for-java/blob/dev/changelog.txt)
- [Commits](AzureAD/azure-activedirectory-library-for-java@1.6.5...1.6.6)

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

Author: dependabot[bot]

pom.xml

@@ -126,7 +126,7 @@
       <dependency>
         <groupId>com.microsoft.azure</groupId>
         <artifactId>adal4j</artifactId>
-        <version>1.6.5</version>
+        <version>1.6.6</version>
         <optional>true</optional>
       </dependency>
       <dependency>