Use applitools branches (#2325)

Author: samtygier-stfc

docs/release_notes/next/dev-2324-applitools-branch

@@ -0,0 +1 @@
+#2324: Use branch feature on applitools

environment-dev.yml

@@ -10,7 +10,7 @@ dependencies:
   - conda-forge::numexpr # https://github.com/mantidproject/mantidimaging/issues/1774
   - pip
   - pip:
-      - eyes-images==5.20.*
+      - eyes-images==5.23.*
   - yapf==0.40.*
   - mypy==1.8
   - types-requests

mantidimaging/eyes_tests/eyes_manager.py

@@ -27,6 +27,10 @@
 VIEWPORT_WIDTH = 1920
 VIEWPORT_HEIGHT = 1080
 
+BRANCH_NAME = None
+if 'GITHUB_HEAD_REF' in os.environ:
+    BRANCH_NAME = os.environ['GITHUB_HEAD_REF']
+
 
 class EyesManager:
 
@@ -35,6 +39,7 @@ def __init__(self, application_name="Mantid Imaging", test_name=None):
         self.eyes = Eyes()
         self.eyes.match_level = MatchLevel.IGNORE_COLORS
         self.eyes.configure.host_os = sys.platform
+        self.eyes.branch_name = BRANCH_NAME
         self.image_directory = None
         self.imaging = None
         if test_name is None: