[FEAT]: Enable app installation for user repository

[M0NsTeRRR]

Describe the need

The github_app_installation_repository currently looks for an organization, but the GitHub API endpoint also supports users.

A GitHub App installation refers to any user or organization account that has installed the app.

https://docs.github.com/en/rest/apps/installations?apiVersion=2022-11-28#about-github-app-installations

Tested with curl and it works (PAT token is required).
https://docs.github.com/en/rest/apps/installations?apiVersion=2022-11-28#add-a-repository-to-an-app-installation

SDK Version

No response

API Version

No response

Relevant log output

I'm using pulumi so maybe the output is different :)

error:   sdk-v2/provider2.go:520: sdk.helper_schema: this resource can only be used in the context of an organization, "m0nsterrr" is a user: [email protected]
    error: 1 error occurred:
        * this resource can only be used in the context of an organization, "m0nsterrr" is a user

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