Merge pull request #20194 from ziglang/musl-v1.2.5

upgrade musl to v1.2.5

lib/std/zig/target.zig

@@ -102,10 +102,12 @@ pub fn muslArchName(arch: std.Target.Cpu.Arch) [:0]const u8 {
         .aarch64, .aarch64_be => return "aarch64",
         .arm, .armeb, .thumb, .thumbeb => return "arm",
         .x86 => return "i386",
+        .loongarch64 => return "loongarch64",
         .mips, .mipsel => return "mips",
         .mips64el, .mips64 => return "mips64",
         .powerpc => return "powerpc",
         .powerpc64, .powerpc64le => return "powerpc64",
+        .riscv32 => return "riscv32",
         .riscv64 => return "riscv64",
         .s390x => return "s390x",
         .wasm32, .wasm64 => return "wasm",