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>

.github/workflows/tests.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
     - name: 🧰 Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         submodules: recursive
 
@@ -39,7 +39,7 @@ jobs:
             python3-pip           \
             libmagic-dev          \
             lcov
-        
+
         sudo pip install jsonschema
 
     - name: 📜 Setup ccache
@@ -74,7 +74,7 @@ jobs:
         cd constants
         for file in ./[!_schema.json]*; do jsonschema -i $file _schema.json; done
         cd ..
-        
+
         cd tips
         for file in ./[!_schema.json]*; do jsonschema -i $file _schema.json; done
         cd ..