Bump Kustvakt version to 0.67.1

Change-Id: I66614acf249d431f0b0a1fbc8a0e91b1269f40c3
diff --git a/core/Changes b/core/Changes
index d4eae28..dca3043 100644
--- a/core/Changes
+++ b/core/Changes
@@ -1,3 +1,5 @@
+# version 0.67.1
+
 # version 0.67
 
 # version 0.66