GitHub Actions Environment Secrets are not encrypted

Description

In the GitHub Terraform provider, there is an optional field to include a plaintext string of the secret. If this is checked into code, it will expose the secret.

Fix - Buildtime

Terraform

• Resource: github_actions_environment_secret, github_actions_organization_secret, github_actions_secret
• Attribute: vulnerability_alerts

resource "github_actions_environment_secret" "test_secret" {
...
-  plaintext_value  = "example%value"
}