Fix Spring Data Querydsl example.

The io.github.jpenren:thymeleaf-spring-data-dialect dependency was out of sync with thymeleaf causing an error when you tried to access the index page.

Additionally Added a TestApplication and revamped the TestContainers usage.

web/querydsl/pom.xml

@@ -58,20 +58,20 @@
 		<dependency>
 			<groupId>io.github.jpenren</groupId>
 			<artifactId>thymeleaf-spring-data-dialect</artifactId>
-			<version>3.3.0</version>
+			<version>3.6.0</version>
 		</dependency>
 
 		<dependency>
 			<groupId>org.webjars</groupId>
 			<artifactId>jquery</artifactId>
-			<version>2.1.3</version>
+			<version>3.7.1</version>
 			<scope>runtime</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>org.webjars</groupId>
 			<artifactId>bootstrap</artifactId>
-			<version>3.3.4</version>
+			<version>5.3.3</version>
 			<scope>runtime</scope>
 		</dependency>
 
@@ -94,6 +94,18 @@
 			<scope>test</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>org.testcontainers</groupId>
+			<artifactId>junit-jupiter</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-testcontainers</artifactId>
+			<scope>test</scope>
+		</dependency>
+
 	</dependencies>
 
 	<build>