[PRM-716-5] Fixed syntax error in Github action

[AndyFlintAnswerDigital]

This PR is functionally identical to PRM-716-4 by @chrisbloe as we both independently spotted and fixed the error on PRM-716-3, we're going to take this PR as it's formatted how we want.

[github-actions]

Code security issues found

View full details here.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Report for step_function on environment: dev

Terraform Format and Style 🖌success

Format Output

Terraform Initialization ⚙️success

Initialization Output

Initializing the backend...

Successfully configured the backend "s3"! Terraform will automatically
use this backend unless the backend configuration changes.
Initializing provider plugins...
- Finding hashicorp/aws versions matching "~> 6.0"...
- Installing hashicorp/aws v6.33.0...
- Installed hashicorp/aws v6.33.0 (signed by HashiCorp)
Terraform has created a lock file .terraform.lock.hcl to record the provider
selections it made above. Include this file in your version control repository
so that Terraform can guarantee to make the same selections by default when
you run "terraform init" in the future.

Terraform has been successfully initialized!

You may now begin working with Terraform. Try running "terraform plan" to see
any changes that are required for your infrastructure. All Terraform commands
should now work.

If you ever set or change modules or backend configuration for Terraform,
rerun this command to reinitialize your working directory. If you forget, other
commands will detect it and remind you to do so if necessary.

Terraform Validation 🤖success

Validation Output

Success! The configuration is valid.

Terraform Plan 📖success

Show Plan (no changes)

No changes. Your infrastructure matches the configuration.

Terraform has compared your real infrastructure against your configuration
and found no differences, so no changes are needed.