fix: pcall get_parser call

Author: theHamsta

lua/nvim-dap-virtual-text/virtual_text.lua

@@ -112,7 +112,11 @@ function M.set_virtual_text(stackframe, options)
     if not lang then
       return
     end
-    parser = parsers.get_parser(buf, lang)
+    local ok
+    ok, parser = pcall(parsers.get_parser, buf, lang)
+    if not ok then
+      return
+    end
   end
 
   local scope_nodes = {}