fix: remove duplicated toolbox image layer (#233)

Dockerfile

@@ -35,10 +35,6 @@ COPY .mise.toml /etc/mise/config.toml
 # Source: https://mise.jdx.dev/cli/install.html
 RUN mise install --yes
 
-# Add system-wide git safe directory to avoid ownership issues in the filesystem.
-# Reasoning: in the remote (CI/CD workflows) or local usage of this image, the user cloning the repository will be different than the one operating on it.
-COPY .gitconfig /etc/gitconfig
-
 # Atmos configuration
 # Source: https://atmos.tools/core-concepts/components/terraform/remote-state/#recommended-options
 COPY rootfs/ /