Update onig

[tomassedovic]

Running any cargo rpg command locally fails with:

$ cargo rpg issues ./src/2025h2/
error: failed to run custom build command for `onig_sys v69.8.1`
[...] 
   cargo:warning=oniguruma/src/regparse.c: In function ‘onig_st_init_strend_table_with_size’:
  cargo:warning=oniguruma/src/regparse.c:588:5: error: initialization of ‘int (*)(void)’ from incompatible pointer type ‘int (*)(st_str_end_key *, st_str_end_key *)’ [-Wincompatible-pointer-types]
  cargo:warning=  588 |     str_end_cmp,
  cargo:warning=      |     ^~~~~~~~~~~
  cargo:warning=oniguruma/src/regparse.c:588:5: note: (near initialization for ‘hashType.compare’)
  cargo:warning=oniguruma/src/regparse.c:550:1: note: ‘str_end_cmp’ declared here
  cargo:warning=  550 | str_end_cmp(st_str_end_key* x, st_str_end_key* y)
  cargo:warning=      | ^~~~~~~~~~~
  cargo:warning=oniguruma/src/regparse.c:589:5: error: initialization of ‘int (*)(void)’ from incompatible pointer type ‘int (*)(st_str_end_key *)’ [-Wincompatible-pointer-types]
  cargo:warning=  589 |     str_end_hash,
  cargo:warning=      |     ^~~~~~~~~~~~
  cargo:warning=oniguruma/src/regparse.c:589:5: note: (near initialization for ‘hashType.hash’)
  cargo:warning=oniguruma/src/regparse.c:571:1: note: ‘str_end_hash’ declared here
  cargo:warning=  571 | str_end_hash(st_str_end_key* x)
  cargo:warning=      | ^~~~~~~~~~~~```
[...] lots of skipped output

Updating to the latest onig version (via cargo update onig) fixes this.

[lqd]

Thanks!