feat: add LLRT binary type property

[tmokmss]

Fixes #8

We can now set LLRT binary type as the following:

const handler = new LlrtFunction(this, 'Handler', {
    entry: 'lambda/index.ts',
    llrtBinaryType: LlrtBinaryType.FULL_SDK,
});

I chose the word BinaryType because bundleType can be confusing with esbuild bundling options.

We now use the latest integ-runner because the old one uses Lambda node14 runtime and it cannot be deloyed with assertions.