Prepare 2.6 M2 (2021.1.0).

See #1497

Author: schauder

parent/pom.xml

@@ -135,7 +135,7 @@
 		<javax-annotation-api>1.3.2</javax-annotation-api>
 
 		<!-- Used in asciidoc reference documentation -->
-		<releasetrain>2021.1.0-SNAPSHOT</releasetrain>
+		<releasetrain>2021.1.0-M2</releasetrain>
 
 		<!-- To be overridden by individual modules -->
 		<java-module-name/>
@@ -337,7 +337,7 @@
 				<dependency>
 					<groupId>org.springframework.data.build</groupId>
 					<artifactId>spring-data-build-resources</artifactId>
-					<version>2.6.0-SNAPSHOT</version>
+					<version>2.6.0-M2</version>
 					<type>zip</type>
 					<optional>true</optional>
 				</dependency>