Makefile: add missing files to clean #25

	name: Native Code Static Analysis

	on:
	push:
	paths:
	- '**.c'
	- '**.cc'
	- '**.cpp'
	- '**.cxx'
	- '**.h'
	- '**.hh'
	- '**.hpp'
	- '.github/workflows/scan-build.yml'
	pull_request:
	paths:
	- '**.c'
	- '**.cc'
	- '**.cpp'
	- '**.cxx'
	- '**.h'
	- '**.hh'
	- '**.hpp'
	- '.github/workflows/scan-build.yml'

	jobs:
	scan-build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	with:
	submodules: recursive
	- name: Install dependencies (apt)
	run: \|
	sudo apt-get update -y -qq
	sudo apt-get install coreutils build-essential libsdl2-dev libsdl2-image-dev libsdl2-ttf-dev libgtest-dev
	- name: Install newer Clang
	run: \|
	wget https://apt.llvm.org/llvm.sh
	chmod +x ./llvm.sh
	sudo ./llvm.sh 18
	- name: Install scan-build command
	run: \|
	sudo apt install clang-tools-18
	- name: scan-build
	run: \|
	scan-build-18 --status-bugs -o scan-build-reports \
	--exclude build --exclude lib/lua \
	--exclude lib/miniz \
	make -j3
	- name: Store report
	if: failure()
	uses: actions/upload-artifact@v4
	with:
	name: scan-build-reports
	path: scan-build-reports

Provide feedback