BREAKING CHANGE: The package was renamed from `@probot/serverless-lambda` to `@probot/adapter-aws-lambda-serverless` for consistency with the other adapters

BREAKING CHANGE: Usage changed

Before

```js
// handler.js
const { serverless } = require("@probot/serverless-lambda");
const appFn = require("./");
module.exports.probot = serverless(appFn);
```

After

```js
const { createLambdaFunction, createProbot } = require("@probot/adapter-aws-lambda-serverless");
const appFn = require("./");
module.exports.webhooks = createLambdaFunction(appFn, { probot: createProbot() });
```

Co-authored-by: Tommy Byrd <[email protected]>