Handle timeout and credential expiration

[Shunsuke Suzuki]

• GitHub Actions timeout:
  • step
  • job
• GitHub Actions OIDC:
  • AWS
    • 1 Hour by default
    • You can extend until 24 Hours
  • GCP
• GitHub App token: 1 Hour
• GitHub Actions token: 24 hours

Terraform itself doesn't support timeout.
https://discuss.hashicorp.com/t/timeout-setting-for-terraform-binary/29627/2

tfaction/terraform-apply/main.sh

Line 13 in d9b00e2

 tfcmt -var "target:$TFACTION_TARGET" apply -- terraform apply -auto-approve -no-color -input=false tfplan.binary 

• Support sending the signal
• Support changing the timeout (By default 1 Hour)