Update main.py for C5

Author: Jason2866

builder/main.py

@@ -234,7 +234,7 @@ def __fetch_fs_size(target, source, env):
 mcu = board.get("build.mcu", "esp32")
 toolchain_arch = "xtensa-%s" % mcu
 filesystem = board.get("build.filesystem", "spiffs")
-if mcu in ("esp32c2", "esp32c3", "esp32c6", "esp32h2", "esp32p4"):
+if mcu in ("esp32c2", "esp32c3", "esp32c5", "esp32c6", "esp32h2", "esp32p4"):
     toolchain_arch = "riscv32-esp"
 
 if "INTEGRATION_EXTRA_DATA" not in env: