git: Various style fixes everywhere, removing whitespaces (#321)

* repo-wide: trim trailing spaces

Note: This doesn't touch the .tbl files in encodings/ since they include
meaningful trailing spaces (`20= `)

* patterns: clean up duplicate semicolons

* ELF: add header magic check

* glTF: use type::Magic for magic value

* glTF: check that the file size in the header matches

* xgstexture: fix generics syntax for magic value

* JPEG: define hex enum with 0x00 instead of 0X00

* CI: update deprecated actions

---------

Co-authored-by: Nik <werwolv98@gmail.com>

patterns/cpio.hexpat

@@ -42,7 +42,7 @@ namespace old_binary {
             std::core::set_endian(std::mem::Endian::Little);
         else
             std::error("Invalid CPIO Magic!");
-        
+
         u16 dev;
         u16 ino;
         Mode mode;
@@ -59,7 +59,7 @@ namespace old_binary {
         CpioHeader header;
         char pathname[header.namesize % 2 == 0 ? header.namesize : header.namesize + 1];
         u8 data[header.filesize % 2 == 0 ? header.filesize : header.filesize + 1];
-        
+
         if (pathname == "TRAILER!!!\x00\x00")
             break;
     };