std.os.uefi.protocol.file: fix getInfo() buffer alignment (#24496)

* std.os.uefi.protocol.file: use @alignCast in getInfo() method to fix #24480

* std.os.uefi.protocol.file: pass alignment responsabilities to caller by redefining the buffer type instead of blindly calling @alignCast

Author: AsmArtisan256

lib/std/os/uefi/protocol/file.zig

@@ -214,7 +214,7 @@ pub const File = extern struct {
     pub fn getInfo(
         self: *const File,
         comptime info: std.meta.Tag(Info),
-        buffer: []u8,
+        buffer: []align(@alignOf(@FieldType(Info, @tagName(info)))) u8,
     ) GetInfoError!*@FieldType(Info, @tagName(info)) {
         const InfoType = @FieldType(Info, @tagName(info));