docs: Document job queue without schedule priority example

[shaiguitar]

Description

Show example of using create_scheduling_policy

Motivation and Context

By default it creates a scheduling policy without specifying any, it is optional, supported in this TF but no doc for it.

Breaking Changes

No, just an example.

How Has This Been Tested?

• [x] I have updated at least one of the examples/* to demonstrate and validate my change(s)
• [x] I have tested and validated these changes using one or more of the provided examples/* projects

Terraform plan went through upon additional.

[shaiguitar]

Related PR this addresses example, document wise: https://github.com/terraform-aws-modules/terraform-aws-batch/commit/86546af08a5791149693374e9206fb5166914b37

[github-actions[bot]]

This PR has been automatically marked as stale because it has been open 30 days with no activity. Remove stale label or comment or this PR will be closed in 10 days

[github-actions[bot]]

This PR was automatically closed because of stale in 10 days

[github-actions[bot]]

This PR has been automatically marked as stale because it has been open 30 days with no activity. Remove stale label or comment or this PR will be closed in 10 days

[github-actions[bot]]

This PR was automatically closed because of stale in 10 days

[github-actions[bot]]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues. If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.