Adiciona o driver do h2

Author: GilbertoJNJ

src/main/resources/application-test.yml

@@ -3,6 +3,7 @@ spring:
     name: InvoiceAPI
   datasource:
     url: jdbc:h2:mem:testdb
+    driver-class-name: org.h2.Driver
   output:
     ansi:
       enabled: ALWAYS