Fixup naming and produce valid JSON

.github/workflows/tmt.yml

@@ -17,12 +17,12 @@ permissions:
   actions: write
 
 jobs:
-  osversions:
+  get-os-versions-job:
     runs-on: ubuntu-latest
     container:
       image: "fedora:rawhide"
     outputs:
-      matrix: ${{ steps.osversions.outputs.osversions }}
+      matrix: ${{ steps.get-os-versions-step.outputs.os_versions }}
     steps:
       - uses: actions/checkout@v4
 
@@ -39,20 +39,20 @@ jobs:
         run: |
           dnf install -y copr-cli
 
-      - id: osversions
+      - id: get-os-versions-step
         shell: bash -e {0}
         run: |
           source scripts/functions.sh
 
           # Get OS versions comma separated with properly quoted rawhide
-          echo osversions=`get_os_versions | paste -sd "," - | sed 's/rawhide/"rawhide"/'` >> $GITHUB_OUTPUT
+          echo os_versions="[`get_os_versions | paste -sd "," - | sed 's/rawhide/\"rawhide\"/'`]" >> $GITHUB_OUTPUT
   run-tmt:
-    needs: osversions
+    needs: get-os-versions-job
     strategy:
       fail-fast: false
       matrix:
         os: [fedora]
-        version: ${{ fromJSON(needs.osversions.outputs.osversions) }}
+        version: ${{ fromJSON(needs.get-os-versions-job.outputs.os_versions) }}
         strategy: [standalone, big-merge, bootstrap]
         include:
           - strategy: standalone