[BAEL-9497] Fix failing context tests - part 1 (#7719)

* fixed context dependency issue and added LiveContext notes in persistence-modules/spring-data-couchbase-2 module

* fixed Context tests and added notes for spring-cloud-bus/spring-cloud-config-client module

* Added context test in spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/data-flow-server module, mainly due to incompatible dependencies, plus fixed parent pom path in different modules

* fixed context tests for spring-cloud/spring-cloud-task/springcloudtaskbatch module, renamed ContextLiveTest as IntegrationTest, now configured to run with an H2 embedded instance. Moved the run note to the application

* Added SpringContextLiveTests in persistence-modules/spring-data-mongodb module

spring-cloud/spring-cloud-task/springcloudtaskbatch/pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung.cloud</groupId>
@@ -43,6 +44,11 @@
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-task-batch</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>