chore: revert #41 (#45)

Author: vil02

.gitpod.dockerfile

@@ -1,6 +1,6 @@
 FROM gitpod/workspace-base
 
-RUN sudo apt-get update && curl https://nim-lang.org/choosenim/init.sh -sSf -o install_nim.sh \
+RUN curl https://nim-lang.org/choosenim/init.sh -sSf -o install_nim.sh \
     && chmod +x ./install_nim.sh \
     && ./install_nim.sh -y \
     && rm install_nim.sh \