[test][utils] Update images for test

Version of beat.env.system.python to 1.3.0r5
Version of beat.env.db.example to 1.4.0r5

beat/core/test/utils.py

@@ -48,8 +48,8 @@ import docker
 
 # Images used for docker-enabled tests within this and other BEAT packages
 DOCKER_TEST_IMAGES = {
-    "docker.idiap.ch/beat/beat.env.system.python": "1.3.0r4",
-    "docker.idiap.ch/beat/beat.env.db.examples": "1.4.0r4",
+    "docker.idiap.ch/beat/beat.env.system.python": "1.3.0r5",
+    "docker.idiap.ch/beat/beat.env.db.examples": "1.4.0r5",
     "docker.idiap.ch/beat/beat.env.cxx": "2.0.0r1",
     "docker.idiap.ch/beat/beat.env.client": "2.0.0r1",
 }