chore: add .luarc.json for Lua workspace configuration

Author: haithium

.luarc.json

@@ -0,0 +1,8 @@
+{
+  "workspace": {
+    "library": [
+      "~/.local/share/lua/types/busted/library",
+      "~/.local/share/lua/types/luassert/library",
+    ]
+  }
+}