Bug description
It looks like there is no JEI integration in 1.20.1-1.0.6 (downloaded from Curseforge).
I think the reason for this is, that the JEI Plugin class is missing in the final jar, the de/maxhenkel/car/integration/jei/ folder only contains the CarRecipe.class, CarRecipeBuilder.class and the PainterRecipe.class files.
The JEIPlugin.java and others are missing in the final jar, but your github contains them here.

Steps to reproduce the issue

1. Go to 'https://www.curseforge.com/minecraft/mc-mods/ultimate-car-mod/files/4648060'
2. Download the mod jar
3. Open it in a jar unpacker (WinRAR / 7Zip / ...)
4. Go to the de/maxhenkel/car/integration/jei/ and see that the JEIPlugin is missing

Expected behavior
To have working JEI support for recipes in the game and therefore a JEIPlugin present in the mod jar.

Log files

Versions

• Minecraft version: 1.20.1
• Forge version: 47.1.43
• Mod version: 1.0.6

Other mods
JEI Version 15.2.0.23