Prevent GitHub Actions from running any workflows

.github.bak/actions/install_deps.sh

@@ -0,0 +1,18 @@
+case `echo $1 | cut -d '-' -f 1` in
+	ubuntu)
+		sudo apt-get -qq update
+		sudo apt-get install -yq bison libpng-dev pkg-config
+		;;
+	macos)
+		brew install bison libpng pkg-config md5sha1sum
+		# For the version check below exclusively, re-do this before building
+		export PATH="/usr/local/opt/bison/bin:$PATH"
+		;;
+	*)
+		echo "WARNING: Cannot install deps for OS '$1'"
+		;;
+esac
+
+bison --version
+make --version
+cmake --version