match boot version, update path

spring-boot-modules/spring-boot-keycloak/pom.xml

@@ -89,7 +89,7 @@
                 <configuration>
                     <packageName>com.baeldung</packageName>
                     <sources>
-                        <source>${project.basedir}/src/main/resources/products.xsd</source>
+                        <source>/${project.basedir}/src/main/resources/products.xsd</source>
                     </sources>
 
                 </configuration>

testing-modules/zerocode/pom.xml

@@ -37,6 +37,7 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>${spring.boot.version}</version>
                 <configuration>
                     <profiles>
                         <profile>it</profile>