Gitlab Runner: Update to 15.7.3

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/apps/developer-tools/gitlab-runner/-/blob/0.48.2-bb.0/CHANGELOG.md

Package MR

https://repo1.dso.mil/big-bang/apps/developer-tools/gitlab-runner/-/merge_requests/76

For Issue

Closes https://repo1.dso.mil/big-bang/apps/developer-tools/gitlab-runner/-/issues/51

Closes https://repo1.dso.mil/big-bang/apps/developer-tools/gitlab-runner/-/issues/50