[maven-release-plugin] prepare for next development iteration

Author: dapla-bot[bot]

pom.xml

@@ -3,7 +3,7 @@
 
     <groupId>no.ssb.dapla.keycloak</groupId>
     <artifactId>dapla-team-keycloak-protocol-mapper</artifactId>
-    <version>26.2.5</version>
+    <version>26.2.6-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>Dapla Team Protocol Mapper for Keycloak</name>
@@ -251,7 +251,7 @@
     <scm>
         <developerConnection>scm:git:https://github.com/${github.repository}.git</developerConnection>
         <url>https://github.com/${github.repository}</url>
-        <tag>v26.2.5</tag>
+        <tag>HEAD</tag>
     </scm>
     <repositories>
         <repository>