Travis Pipeline does not support all Lambda runtimes

[genghis-yang]

• In this repo, I use AWS Lambda to schedule my task.
• Because the release package is native image, it does not need any language framework, like Node, Java, or Python. I just choose the Lambda runtime provided, which can run executable binary directly.
• But Travis CI does not support Lambda runtime provided.

[genghis-yang]

I have to create a PR to fix that. Unfortunately, no one reviews that.

For now, my #1 is blocked. Hope they (Travis CI team) could merge my PR ASAP.