toolchain: gcc: update to 13.3
Release Notes:
https://gcc.gnu.org/pipermail/gcc/2024-May/243980.html
Remove upstreamed patches:
- patches-13.x/020-Include-safe-ctype.h-after-C-standard-headers-to-avo.patch
- patches-13.x/021-libcc1-fix-vector-include.patch
- patches-13.x/400-LoongArch-Fix-MUSL_DYNAMIC_LINKER.patch
- patches-13.x/401-LoongArch-Modify-MUSL_DYNAMIC_LINKER.patch
Refresh patches:
- patches-13.x/300-mips_Os_cpu_rtx_cost_model.patch
- patches-13.x/970-macos_arm64-building-fix.patch
Signed-off-by: Olcay Korkmaz <nuke_mania@hotmail.com>