Add Slice test annotation for Redis

This commit adds new annotation `@DataRedisTest` which provides test
infrastructure for redis.

See gh-9224

spring-boot-test-autoconfigure/pom.xml

@@ -59,6 +59,11 @@
 			<artifactId>htmlunit</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>org.apache.commons</groupId>
+			<artifactId>commons-pool2</artifactId>
+			<optional>true</optional>
+		</dependency>
 		<dependency>
 			<groupId>org.hibernate</groupId>
 			<artifactId>hibernate-core</artifactId>
@@ -146,6 +151,17 @@
 			<artifactId>spring-security-test</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.data</groupId>
+			<artifactId>spring-data-redis</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>redis.clients</groupId>
+			<artifactId>jedis</artifactId>
+			<optional>true</optional>
+		</dependency>
+
 		<!-- Test -->
 		<dependency>
 			<groupId>org.springframework.boot</groupId>