GH-268: Update Boot 2.6.7 / Spring Cloud 2021.0.2 (#269)

Also updates other dependencies accordingly. 

Fixes #268

common/cdc-debezium-common/src/main/java/org/springframework/cloud/fn/common/cdc/EmbeddedEngine.java

@@ -934,7 +934,7 @@ public final class EmbeddedEngine implements DebeziumEngine<SourceRecord> {
 			public synchronized void markProcessed(SourceRecord record) throws InterruptedException {
 				task.commitRecord(record);
 				recordsSinceLastCommit += 1;
-				offsetWriter.offset(record.sourcePartition(), record.sourceOffset());
+				offsetWriter.offset((Map<String, Object>) record.sourcePartition(), (Map<String, Object>) record.sourceOffset());
 			}
 
 			@Override

function-dependencies/pom.xml

@@ -8,7 +8,6 @@
         <groupId>org.springframework.cloud.fn</groupId>
         <artifactId>java-functions-parent</artifactId>
         <version>${revision}</version>
-        <relativePath>..</relativePath>
     </parent>
 
     <artifactId>function-dependencies</artifactId>

spring-functions-parent/pom.xml

@@ -8,14 +8,13 @@
 		<groupId>org.springframework.cloud.fn</groupId>
 		<artifactId>java-functions-parent</artifactId>
 		<version>${revision}</version>
-		<relativePath>..</relativePath>
 	</parent>
 
 	<artifactId>spring-functions-parent</artifactId>
 	<packaging>pom</packaging>
 
 	<properties>
-		<spring-cloud-function.version>3.2.2</spring-cloud-function.version>
+		<spring-cloud-function.version>3.2.3</spring-cloud-function.version>
 		<spring-cloud-fn.version>${project.version}</spring-cloud-fn.version>
 	</properties>