release: Update package.xml version to 0.1.1

Author: MaximilienNaveau

package.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <package format="3">
   <name>mim_solvers</name>
-  <version>0.1.0</version>
+  <version>0.1.1</version>
   <description>Numerical solvers of the Machines in Motion Laboratory.</description>
   <maintainer email="[email protected]">Sébastien Kleff</maintainer>
   <author email="[email protected]">Sébastien Kleff</author>