omni: switch branch refs to android-14.0

Change-Id: Icf23a1368e21dcdb29df0bc3a2010323332723fd
diff --git a/config/version.mk b/config/version.mk
index 5437cb4..8abde6e 100644
--- a/config/version.mk
+++ b/config/version.mk
@@ -36,7 +36,7 @@
     endif
 endif
 
-ROM_BRANCH := android-13.0
+ROM_BRANCH := android-14.0
 
 # Apply it to build.prop
 PRODUCT_PRODUCT_PROPERTIES += \