fix: dockerfile use git repo and subdir #1391

Job	Run time
🚨 REUSE Compliance	39s
🚨 C lint	17s
🚨 Lua lint	18s
🐧 Linux check tests (gcc and clang) (COMPILER=gcc)	1m 43s
🐧 Linux check tests (gcc and clang) (COMPILER=clang)	2m 11s
🍎 Apple OSX check tests	0s
🪟 Windows build test	0s
🦾 ARM32 build test	0s
🐹 go build & checks	0s
🐯 NodeJS WASM check tests	0s
🐍 Python checks	0s
🦀 rust build & checks	0s
🤖 Semantic release	28s
🗃️ Check file changes	0s
🐯 js build release	0s
🍎 mac osx release build	0s
🐧 Binary builds on Ubuntu	0s
🐍 Python create source distribution	0s
📦 Pack release	0s
📦 npm release	0s
🧻 Remove tag on fail	0s
🐳 Publish Docker image	0s
📦 PyPI release	0s
	5m 36s

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