Update dependency ltx to v3.1.2

Author: renovate[bot]

package-lock.json

@@ -79,7 +79,7 @@
     "jest": "28.1.3",
     "js-yaml": "4.1.0",
     "lodash": "4.17.21",
-    "ltx": "3.0.0",
+    "ltx": "3.1.2",
     "mini-css-extract-plugin": "1.6.2",
     "npm-run-all2": "5.0.2",
     "pleasantest": "3.1.0",