Do not set header X-Goog-User-Project header for the resource google_client_openid_userinfo

[modular-magician]

Fixes #10260

https://b.corp.google.com/issues/202287364

When the environment variable USER_PROJECT_OVERRIDE is set to true and GOOGLE_BILLING_PROJECT is set to some project, first the header X-Goog-User-Project is set in provider config.
https://github.com/GoogleCloudPlatform/magic-modules/blob/main/mmv1/third_party/terraform/utils/config.go.erb#L307-L311

When the header X-Goog-User-Project is set for the call to get user info, it returns an error. Maybe the API openidconnect.googleapis.com does not handle the header X-Goog-User-Project properly. The error does not occur with other APIs. So don't set the header X-Goog-User-Project for the resource google_client_openid_userinfo.

To not set header X-Goog-User-Project for the resource google_client_openid_userinfo, we need to override the header value in the resource level. First pass the project as "NO_BILLING_PROJECT_OVERRIDE" when calling sendRequest inside the function GetCurrentUserEmail. And inside sendRequest function, the header X-Goog-User-Project is set to empty string by checking the project value.

The previous PR is reverted because if breaks some resources.

Feel free to add comment if you have any concerns about this solution.

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cloudplatform: fixed the error with header `X-Goog-User-Project` on `google_client_openid_userinfo`

Derived from GoogleCloudPlatform/magic-modules#7113

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