Add ability to load custom root CA

.devcontainer/internal_dev/onCreateCommand.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+export REPO_ROOT="$(git rev-parse --show-toplevel)"
+
+file="$REPO_ROOT/dev/custom-root-ca.crt"
+
+if [ -e "$file" ]; then
+  echo "Adding custom root CA"
+  sudo cp "$file" /usr/local/share/ca-certificates/
+  sudo update-ca-certificates
+else
+  echo "No custom root CA found, skipping..."
+fi