Update drools-applications to next snapshot version

Issue-ID: POLICY-2171
Change-Id: Ifffb1b2e92d177e8e4f7b4c744e4a69565529b17
Signed-off-by: liamfallon <liam.fallon@est.tech>
diff --git a/version.properties b/version.properties
index 9eb3b93..35abbad 100644
--- a/version.properties
+++ b/version.properties
@@ -4,7 +4,7 @@
 
 major=1
 minor=5
-patch=3
+patch=4
 
 base_version=${major}.${minor}.${patch}