build: disable CONFIG_RP23XX_UF2_BINARY in NuttX CI
Disable UF2 binary support for RP23XX boards in the compilation
workflow to resolve build issues and maintain consistency with
RP2040 board configuration.
* Added kconfig-tweak --disable CONFIG_RP23XX_UF2_BINARY
* Follows existing pattern for RP2040 boards
* Ensures successful compilation for rp23xx target