at_c: Warning when building with ESP32

[JeremyTubongbanua]

/Users/jeremytubongbanua/GitHub/esp_demo/me/managed_components/jeremytubongbanua__atchops/src/rsa.c:411:5: error: conflicting types for 'atchops_rsa_generate' due to enum/integer mismatch; have 'int(atchops_rsa_key_public_key *, atchops_rsa_key_private_key *, const unsigned int)' [-Werror=enum-int-mismatch]
  411 | int atchops_rsa_generate(atchops_rsa_key_public_key *public_key, atchops_rsa_key_private_key *private_key,
      |     ^~~~~~~~~~~~~~~~~~~~
In file included from /Users/jeremytubongbanua/GitHub/esp_demo/me/managed_components/jeremytubongbanua__atchops/src/rsa.c:1:
/Users/jeremytubongbanua/GitHub/esp_demo/me/managed_components/jeremytubongbanua__atchops/include/atchops/rsa.h:74:5: note: previous declaration of 'atchops_rsa_generate' with type 'int(atchops_rsa_key_public_key *, atchops_rsa_key_private_key *, const atchops_md_type)'
   74 | int atchops_rsa_generate(atchops_rsa_key_public_key *public_key, atchops_rsa_key_private_key *private_key,
      |     ^~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
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