github: Update dawidd6/action-download-artifact to v27

This should avoid issues where the action spuriously fetches older
runs than expected.

.github/workflows/docker.yml

@@ -22,7 +22,7 @@ jobs:
       TAG: ${{steps.get-parameters.outputs.TAG}}
     steps:
       - name: Download build parameters
-        uses: dawidd6/action-download-artifact@v19
+        uses: dawidd6/action-download-artifact@v27
         with:
           workflow: build.yml
           workflow_conclusion: success
@@ -69,7 +69,7 @@ jobs:
         with:
           ref: ${{inputs.ref}}
       - name: Download toolchain
-        uses: dawidd6/action-download-artifact@v19
+        uses: dawidd6/action-download-artifact@v27
         with:
           workflow: build.yml
           workflow_conclusion: success