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>

tests/includes/source/main.cpp

@@ -31,7 +31,7 @@ int main(int argc, char **argv) {
             return false;
         };
 
-        runtime.setDataSource(0x00, 0x100000, 
+        runtime.setDataSource(0x00, 0x100000,
             [&](pl::u64 address, pl::u8 *data, size_t size) {
                 pl::core::err::E0011.throwError("Include files should never read from memory directly!");
             }