address lint errors for usage of any

[james-elicx]

This PR enforces the no-explicit-any lint rule in aws.

As a result, I've done the following;

• Added ts:check script in aws so it runs as part of the ts:check job in CI.
• Replaced usage with unknown.
• Defined concrete types in places where they're known or summised.
• Used more relevant type assertions in certain areas.
• In a few cases, the rule is ignored when we don't have a better alternative.
• Some of the generic function signatures and how they are used were altered to better reflect unknown types.

There should be no change to the actual behaviour of the adapter in this PR.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/@opennextjs/cloudflare@19

npm i https://pkg.pr.new/@opennextjs/aws@19

commit: 8f0a3e6

[vicb]

LGTM, thanks!

I still found some comments to add ;)
Some of the commented code has repeated occurences, I commented only once.