ci: remove template expansion in code contexts (#1434)

.github/workflows/release-plz.yml

@@ -33,12 +33,13 @@ jobs:
 
       - name: Trigger workflows
         if: steps.release-plz.outputs.releases_created == 'true'
-        run: |
-          gh api repos/${{ github.repository }}/dispatches \
-            -f "event_type=release-created" \
-            -F "client_payload[tag]=${{ fromJSON(steps.release-plz.outputs.releases)[0].tag }}"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          tag: ${{ fromJSON(steps.release-plz.outputs.releases)[0].tag }}
+        run: |
+          gh api "repos/${GITHUB_REPOSITORY}/dispatches" \
+            -f "event_type=release-created" \
+            -F "client_payload[tag]=${tag}"
 
   # Create a PR with the new versions and changelog, preparing the next release.
   release-plz-pr: