Bump Kustvakt version to 0.69.3

Change-Id: Ic7fe9b159ef44ff7ed92e31194220466d955ed92
diff --git a/core/Changes b/core/Changes
index 8e830be..826ba68 100644
--- a/core/Changes
+++ b/core/Changes
@@ -1,3 +1,5 @@
+# version 0.69.3
+
 # version 0.69.2
 
 - Upgrade version for E2E-simplified Docker images (diewald)