feat(aws iam): support aws iam auth for postgresql components

[sicoyle]

Description

Allow for AWS IAM auth with postgres v2. These changes rotate the authentication token automatically before the 15 minute expiration on the authentication token.

Adding support for v1 and v2 postgres statestore and config and bindings postgres types.

Please note that I removed the master connection string setup I had initially. There is no reason to use aws iam enabled on postgres and a master connection string, as the dapr user could just use the regular postgres connection string auth for that. I now have it setup to where you just use an iam enabled username and the pwd is auto generated based on the aws config file or the secretkey/accesskey for the iam enabled user.

Issue reference

#3254

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]

[ItalyPaleAle]

Thanks for this PR.

Please move all the code for authenticating with AWS IAM to a shared package. If it's specific for Postgres, it should be in one of the common packages we have for Postgres.

This way, you can also enable it for all PG components (not just the state store v1, but also the binding and configuration store)

[sicoyle]

Can I get help/advice on what y'all want for the dependencies pls? From what I see is that the certification tests go.mod dependencies are behind what the main module dependencies are for kit and dapr. However, the main module is using kit:

github.com/dapr/kit](http://github.com/dapr/kit) v0.13.1-0.20240306152601-e33fbab74548

And contrib in main branch also has dependencies on dapr/dapr v1.13.2 bc of fields brought into

http://github.com/forks/dapr/components-contrib/tests/certification/embedded/embedded.go

For:

DaprHTTPMaxRequestSize:    maxRequestBodySize,
DaprHTTPReadBufferSize:    runtime.DefaultReadBufferSize,

How should I proceed with fixing? bc my cert tests still fail but the main module dependencies if I bump the cert tests to are incompatible...

[sicoyle]

this is ready pls

[berndverst]

what does this magic number do?

[sicoyle]

cc @JoshVanL pls lmk if I'm missing anything on the below 👇 . This is based on chatting with him on it previously.

[sicoyle]

That change Josh recommended we use to help standardize the unit of measurement of config options, so that number now represents bits or bytes copied from dapr/dapr#7546

[sicoyle]

see here in that pr where they are using similarly

[sicoyle]

@berndverst lmk if you need further clarification

[berndverst]

@sicoyle I mentioned a few times to remove the patch file from your PR please. The 3346.patch file should not be in the PR. I will not approve and merge until this file is gone.