feat: create envs for managed repos using terraform

[cunla]

When importing a new repo - it will automatically create pypi and testpypi environments with the relevant rules.

[github-actions]

Terraform plan in terraform
With var files: terraform/production/org.tfvars terraform/production/repositories.tfvars
With variables: github_token = (sensitive value)

Plan: 2 to add, 0 to change, 0 to destroy.

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
+   create

Terraform will perform the following actions:

  # github_repository_environment.pypi["django-tasks-scheduler"] will be created
+   resource "github_repository_environment" "pypi" {
+       can_admins_bypass   = true
+       environment         = "pypi"
+       id                  = (known after apply)
+       prevent_self_review = false
+       repository          = "django-tasks-scheduler"

+       reviewers {
+           teams = [
+               10707221,
            ]
        }
    }

  # github_repository_environment.testpypi["django-tasks-scheduler"] will be created
+   resource "github_repository_environment" "testpypi" {
+       can_admins_bypass   = true
+       environment         = "testpypi"
+       id                  = (known after apply)
+       prevent_self_review = false
+       repository          = "django-tasks-scheduler"
    }

Plan: 2 to add, 0 to change, 0 to destroy.

📝 Plan generated in Plan org changes and list them in a PR #84

[tim-schilling]

Thanks for adding this in! Always great to simplify a process.