Removing env var credentials provider.

SnapStart uses a different credentials provider so when it is hardcoded like this, the default will fail.

Author: msailes

powertools-idempotency/src/main/java/software/amazon/lambda/powertools/idempotency/persistence/DynamoDBPersistenceStore.java

@@ -86,7 +86,6 @@ private DynamoDBPersistenceStore(String tableName,
             String idempotencyDisabledEnv = System.getenv().get(Constants.IDEMPOTENCY_DISABLED_ENV);
             if (idempotencyDisabledEnv == null || idempotencyDisabledEnv.equalsIgnoreCase("false")) {
                 DynamoDbClientBuilder ddbBuilder = DynamoDbClient.builder()
-                        .credentialsProvider(EnvironmentVariableCredentialsProvider.create())
                         .httpClient(UrlConnectionHttpClient.builder().build())
                         .region(Region.of(System.getenv(AWS_REGION_ENV)));
                 this.dynamoDbClient = ddbBuilder.build();
@@ -238,6 +237,10 @@ private DataRecord itemToRecord(Map<String, AttributeValue> item) {
                 item.get(this.inProgressExpiryAttr) != null ? OptionalLong.of(Long.parseLong(item.get(this.inProgressExpiryAttr).n())) : OptionalLong.empty());
     }
 
+    public DynamoDbClient getDynamoDbClient() {
+        return dynamoDbClient;
+    }
+
     public static Builder builder() {
         return new Builder();
     }