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/vhdx.hexpat

@@ -38,7 +38,7 @@ struct DataDescriptor {
 
 struct LogDescriptor {
 	char signature[4];
-	
+
 	if (signature == "zero")
 		ZeroDescriptor descriptor [[inline]];
 	else if (signature == "desc")
@@ -103,7 +103,7 @@ struct ParentLocatorEntry {
 	u32 valueOffset;
 	u16 keyLength;
 	u16 valueLength;
-	
+
 	char16 key[keyLength / 2] @ addressof(parent) + keyOffset;
 	char16 value[valueLength / 2] @ addressof(parent) + valueOffset;
 };
@@ -161,7 +161,7 @@ struct RegionTable {
 	u32 checksum;
 	u32 entryCount;
 	padding[4];
-	
+
 	RegionTableEntry entries[entryCount];
 };