🐛 Fix JGAurora A5S A1 build (#24326)

ini/stm32f1.ini

 board                       = genericSTM32F103ZE
 board_build.variant         = MARLIN_F103Zx
 board_build.offset          = 0xA000
-board_build.rename          = firmware_for_sd_upload.bin
 board_upload.offset_address = 0x0800A000
 build_flags                 = ${stm32_variant.build_flags}
                               -DSTM32F1xx -DSTM32_XL_DENSITY