revert; fix TestVectors snapshot version

Author: RitvikKapila

pom.xml

@@ -71,6 +71,14 @@
             <version>1.6.0</version>
         </dependency>
 
+        <dependency>
+            <groupId>software.amazon.cryptography</groupId>
+            <artifactId>TestAwsCryptographicMaterialProviders</artifactId>
+            <version>1.6.0-SNAPSHOT</version>
+            <optional>true</optional>
+            <scope>test</scope>
+        </dependency>
+
         <dependency>
             <groupId>org.bouncycastle</groupId>
             <artifactId>bcprov-jdk18on</artifactId>