Changes route for our sourced common file

What does this MR do?

• Version 16 of GitLab begins the removal of deprecated endpoints, and the raw endpoint is one of the targets.
• So let's add the hyphen as desired!

Example URLs:

• New: https://gitlab.com/gitlab-com/gl-infra/k8s-workloads/common/-/raw/master/bin/common.bash
• Old: https://gitlab.com/gitlab-com/gl-infra/k8s-workloads/common/raw/master/bin/common.bash

Addresses: gitlab-com/gl-infra/delivery#2962 (closed)

Author Check-list

Please read the Contributing document and once you do, complete the following:

• Check if all of the following apply:
  • Assign to the correct reviewer per the contributing document
  • Apply the correct metadata per the contributing document
  • Link to related MRs for applying the changes on other environments
  • Link to related Chef changes
  • If necessary link to a Criticality 4 Change Request issue

Reviewer Check-list

• Check if all of the following apply:
  • Reviewed the diff jobs to confirm changes are as expected
  • No changes shown in the diffs not associated with this MR - This may require a rebase or further investigation

Applier Check-list

• Make sure there is no ongoing deployment for the affected envs before merging (see #announcements slack channel)