libtomlc99/test: un-blacklist segfaulting teset

After backporting upstream fix, we can un-blacklist the
test input that was triggering segfault.

src/libtomlc99/toml_tap.c

@@ -204,7 +204,6 @@ struct entry {
 };
 
 const struct entry bad_input_blacklist[] = {
-    { "table-array-implicit.toml" ,         "segfault, cktan/tomlc99#3" },
     { NULL, NULL },
 };