build issue with sw build

[baskaran-mips]

I have pulled the cheriot branch (commit id: fc3298f)

Followed the steps in readme.md to build (in WSL Ubuntu 24).

while building sw i encountered below issue (cmake --build sw/device/build)

/sunburst/sunburst-chip/sw/device/lib/testing/json/../../../../../sw/device/lib/testing/json/pinmux_config.h:40:1: **error**: initializer-string for char array is too long [-Werror,-Wexcess-initializers]
   40 | UJSON_SERDE_STRUCT(PinmuxConfig, pinmux_config_t, STRUCT_PINMUX_CONFIG);
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

any pointers to what i could be missing ?