fixup! [Dockerfile] add file

Author: diivm

Dockerfile

@@ -3,13 +3,7 @@ FROM ubuntu:20.04
 WORKDIR /clang-bind
 COPY . .
 
-RUN apt-get update && apt-get install -y python3-pip build-essential wget
-
-# Install libclang via development branch on https://apt.llvm.org/
-RUN wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -;\
-	echo 'deb http://apt.llvm.org/focal/ llvm-toolchain-focal-12 main' | tee -a /etc/apt/sources.list;\
-	echo 'deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-12 main' | tee -a /etc/apt/sources.list;\
-	apt-get install -y libclang-12-dev python3-clang-12
+RUN apt-get update -y && apt-get install -y python3-pip libclang-12-dev python3-clang-12
 
 RUN pip install -r requirements.txt