Release 2.1.1 (#367)

* [maven-release-plugin] prepare release dave-backend-2.1.1

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

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Co-authored-by: GitHub Actions <[email protected]>

Author: vermali

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>de.muenchen.dave</groupId>
     <artifactId>dave-backend</artifactId>
-    <version>2.2.0-SNAPSHOT</version>
+    <version>2.1.2-SNAPSHOT</version>
     <name>dave_backend</name>
     <description>Backend für DAVe</description>