Add target-feature=+jsconv for all aarch64 targets

Co-authored-by: Brooooooklyn <3468483+Brooooooklyn@users.noreply.github.com>

Author: Copilot

.cargo/config.toml

@@ -25,6 +25,10 @@ rustflags = ["-C", "target-feature=+crt-static"]
 [target.aarch64-pc-windows-msvc]
 rustflags = ["-C", "target-feature=+crt-static"]
 
+# Enable jsconv target feature for all aarch64 targets to support FJCVTZS instruction
+[target.'cfg(target_arch = "aarch64")']
+rustflags = ["-C", "target-feature=+jsconv"]
+
 # To be able to run unit tests on Windows, support compilation to 'x86_64-pc-windows-msvc'.
 # Use Hybrid CRT to reduce the size of the binary (Coming by default with Windows 10 and later versions).
 [target.'cfg(target_os = "windows")']