Update the 'libbet' commit used for testing

This reduces our need to patch it for compatibility

test/fetch-test-deps.sh

@@ -100,5 +100,5 @@ if "$nonfree"; then
 	action zladx LADX-Disassembly 2024-02-25 583c78d2f2a5258b87bf133f75b7129228255650
 fi
 action AntonioND ucity   2023-11-02 c781ae20c0b319262b19b51e5067a2c93cf3b362
-action pinobatch libbet  2024-03-09 c98c7574d94f3e1a977bd7e98899f30a1ecbbb17
+action pinobatch libbet  2024-03-28 a3e5770f5904fe02a55c6651dd674896f101d6d1
 action LIJI32    SameBoy 2024-03-08 e7792c16b24c08f55a370973f0beaecb7bd0ab92

test/patches/libbet.patch

@@ -1,5 +1,5 @@
 diff --git a/makefile b/makefile
-index 6513518..ba14638 100644
+index ccfc9d1..ba14638 100644
 --- a/makefile
 +++ b/makefile
 @@ -85,10 +85,10 @@ $(title).gb: $(objlisto)
@@ -15,25 +15,3 @@ index 6513518..ba14638 100644
  
  # Files that will be included with incbin
  
-@@ -108,7 +108,7 @@ obj/gb/sgb.o: \
- 
- # Local variable allocation
- 
--obj/gb/localvars.z80: tools/savescan.py $(wildcard src/*.z80)
-+obj/gb/localvars.z80: tools/savescan.py $(sort $(wildcard src/*.z80))
- 	$(PY) $^ -o $@
- 
- # Graphics conversion
-diff --git a/tools/makeborder.py b/tools/makeborder.py
-index b9fa3f1..dfe5789 100755
---- a/tools/makeborder.py
-+++ b/tools/makeborder.py
-@@ -88,7 +88,7 @@ def main(argv=None):
-     else:
-         iutmrows = b''.join(pb16.pb16(b''.join(utmrows)))
- 
--    palette = im.getpalette()[:48]
-+    palette = im.getpalette()[:12]
-     palette.extend(bytes(48 - len(palette)))
-     snespalette = bytearray()
-     for i in range(0, 48, 3):