feat: add lab-rv32i-c-uart card

scripts/render_new_pdf.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env sh
+set -eu
+
+script_dir=$(CDPATH= cd "$(dirname "$0")" && pwd)
+repo_root=$(CDPATH= cd "$script_dir/.." && pwd)
+layouts_root=$repo_root/../../../tools/card-layouts
+
+if ! git -C "$repo_root" rev-parse --verify HEAD >/dev/null 2>&1; then
+  export GITEA_SHA=0000000000000000000000000000000000000000
+fi
+
+exec "$layouts_root/tools/render_card_pdf_preserving.sh" "$repo_root"