[BUGFIX] fix(handbrake): skip preset argument when empty (automatic-ripping-machine#1689)

* fix(handbrake): skip preset argument when empty

HandBrakeCLI does not require a preset, so we should not pass
an empty --preset argument when hb_preset is not configured.

Fixes automatic-ripping-machine#1637

* Update VERSION

---------

Co-authored-by: Mtech <62650032+microtechno9000@users.noreply.github.com>

Author: ImLunaHey

VERSION

@@ -1 +1 @@
-2.21.4
+2.21.5

arm/ripper/handbrake.py

@@ -70,7 +70,8 @@ def build_handbrake_command(srcpath, filepathname, hb_preset, hb_args, logfile,
     if main_feature:
         cmd += "--main-feature "
 
-    cmd += f"--preset \"{hb_preset}\" "
+    if hb_preset:
+        cmd += f"--preset \"{hb_preset}\" "
 
     if track_number is not None:
         cmd += f"-t {track_number} "