GHA: Simplify script reference
This workflow was originally crafted to be (somehow) reused with
different scripts.  That never happened and the extra indirection is
confusing and hard to maintain.  Remove it.
@@ -38,7 +38,7 @@ jobs:
- name: Get failed cron names and Build IDs
id: cron
- run: './.github/actions/${{ github.workflow }}/${{ github.job }}.sh'
+ run: './.github/actions/check_cirrus_cron/cron_failures.sh'
- if: steps.cron.outputs.failures > 0
shell: bash
