GHSA-JQCP-XC3V-F446 fast-float2 has a segmentation fault due to lack of bound check

In this case, the "fastfloat2::common::AsciiStr::first" method within the "AsciiStr" struct uses the unsafe keyword to reading from memory without performing bounds checking. Specifically, it directly dereferences a pointer offset by "self.ptr". Because of the above reason, the method accesses...