Print a GitHub Actions error annotation if install_deps.sh fails

See https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-commands#setting-an-error-message

.github/scripts/install_deps.sh

@@ -3,7 +3,7 @@
 set -eu
 
 case "${1%-*}" in
-	ubuntu)
+	ubuntu|debian)
 		sudo apt-get -qq update
 		sudo apt-get install -yq bison libpng-dev pkg-config
 		;;
@@ -27,7 +27,7 @@ case "${1%-*}" in
 		bison() { win_bison "$@"; } # An alias doesn't work, so we use a function instead.
 		;;
 	*)
-		echo "WARNING: Cannot install deps for OS '$1'"
+		echo "::error:: Cannot install deps for OS '$1'"
 		;;
 esac
 

Dockerfile

@@ -9,7 +9,7 @@ RUN apt-get update && \
     apt-get install sudo make cmake gcc build-essential -y
 
 # Install dependencies and compile RGBDS
-RUN ./.github/scripts/install_deps.sh ubuntu-24.04
+RUN ./.github/scripts/install_deps.sh debian
 RUN make -j CXXFLAGS="-O3 -flto -DNDEBUG -static" PKG_CONFIG="pkg-config --static" Q=
 
 # Create an archive with the compiled executables and all the necessary to install it,