fixed env variable declaration

Author: janniclas

.docker/Dockerfile.devenv

@@ -1,7 +1,7 @@
 FROM ubuntu:22.04
 
 RUN apt -y update && apt -y upgrade && apt install bash  -y
-RUN DEBIAN_FRONTEND=noninteractive apt -y install wget gpg software-properties-common lsb-release git make python3 python3-pip -y
+RUN DEBIAN_FRONTEND=noninteractive apt -y install wget gpg software-properties-common lsb-release git make python3 python3-pip vim -y
 RUN apt -y update && apt -y install cmake clang-14 ninja-build sudo
 
 
@@ -13,6 +13,6 @@ RUN set -exu; \
 
 USER vscode
 
-ENV CC "$(which clang-14)"
-ENV CXX "$(which clang++-14)"
+ENV CC "/usr/bin/clang-14"
+ENV CXX "/usr/bin/clang++-14"
 ENV CMAKE_GENERATOR "Ninja"