Fix inconsistent package requirements: typescript, @typescript-eslint/eslint-plugin, @typescript-eslint/parser`

[mfogel]

Hi, this commit to bump dependency minor versions seems to have caused two problems.

The first issue is simple: it caused package.json and package-lock.json to get out-of-sync.

The second issue is more complicated:

• it bumped the minimum typescript version from 4.2.4 to 4.5.5
• however, @typescript-eslint/eslint-plugin and @typescript-eslint/parser are still on the 4.x line, and don't support typescript 4.5.X.

The result is when sls package is run the following warning is printed to the console:

WARNING: You are currently running a version of TypeScript which is not officially supported by @typescript-eslint/typescript-estree.

You may find that it works just fine, or you may not.

To support typescript 4.5.X, @typescript-eslint/eslint-plugin and @typescript-eslint/parser would need to be upgraded to the next major version.

Until that's done, it might be a good idea to relax the version requirement on typescript to include the 4.4.X line. That's what this PR does.

This PR also updates package-lock.json so it's consistent with package.json.