fix(runner): print lexer error

src/runner.py

@@ -25,9 +25,10 @@ class Runner:
         tokens: list[Token]
         try:
             tokens = lexer.process()
-        except:
+        except Exception as e:
             print("Partially parsed tokens:")
             print(lexer.tokens)
+            print(e)
             return
         print(list(filter(lambda t: t.type not in Parser.IGNORE, tokens)))