Override PATH on MacOS to find borg bin. By @greigdp (#2166)

src/vorta/borg/borg_job.py

@@ -203,7 +203,13 @@ def prepare(cls, profile):
     @classmethod
     def prepare_bin(cls):
         """Find packaged borg binary. Prefer globally installed."""
-
+        # On MacOS, the PATH environment variable does not seem to be set when run as a pyinstaller binary.
+        # More info at https://github.com/borgbase/vorta/issues/2100
+        # Set the path to also find homebrew installs of Borg, and avoid falling back to the embedded binary.
+        if sys.platform == 'darwin':
+            current_path = os.environ.get("PATH", "/usr/bin:/bin")
+            os.environ["PATH"] = f"{current_path}:/opt/homebrew/bin:/usr/local/bin"
+        # Now continue looking for the borg binary to use
         borg_in_path = shutil.which('borg')
 
         if borg_in_path: