#6154 [Core feature] Pass a dict to containertask Issue created by doLei-2001 ### Motivation: Why do you think this is important? As far as I know, only basic types such as str-int-float can be passed into containertask. If you want to pass dict/json type into it, you can only use json.dumps to convert it to str first, and then pass it. It still needs to be loaded into dict-json type inside the image. This is very troublesome. for 2 ways: 1. json.dumps() / json.loads() 2. flytefile pass a file into containertask ### Goal: What should the final outcome look like, ideally? We can directly pass dict type data to containertask, and we can easily get it in the image ### Describe alternatives you've considered easy to use ### Propose: Link/Inline OR Additional context No response ### Are you sure this issue hasn't been raised already? • Yes ### Have you read the Code of Conduct? • Yes flyteorg/flyte