Update test-pr action from set-env to $GITHUB_ENV file
Update test-pr action from set-env to $GITHUB_ENV file

See https://github.blog/changelog/2020-10-01-github-actions-deprecating-set-env-and-add-path-commands/

neo-technology/docker-official-images,docker-solr/official-images,infosiftr/stackbrew,thresheek/official-images,neo-technology/docker-official-images,thresheek/official-images,thresheek/official-images,31z4/official-images,31z4/official-images,31z4/official-images,thresheek/official-images,infosiftr/stackbrew,thresheek/official-images,dinogun/official-images,thresheek/official-images,docker-library/official-images,dinogun/official-images,31z4/official-images,infosiftr/stackbrew,thresheek/official-images,31z4/official-images,thresheek/official-images,dinogun/official-images,docker-solr/official-images,infosiftr/stackbrew,dinogun/official-images,neo-technology/docker-official-images,docker-solr/official-images,31z4/official-images,infosiftr/stackbrew,docker-solr/official-images,neo-technology/docker-official-images,docker-library/official-images,neo-technology/docker-official-images,docker-library/official-images,infosiftr/stackbrew,neo-technology/docker-official-images,dinogun/official-images,dinogun/official-images,docker-solr/official-images,dinogun/official-images,docker-solr/official-images,docker-library/official-images,docker-library/official-images,docker-solr/official-images,dinogun/official-images,31z4/official-images,infosiftr/stackbrew,infosiftr/stackbrew,infosiftr/stackbrew,dinogun/official-images,31z4/official-images,thresheek/official-images,31z4/official-images,dinogun/official-images,thresheek/official-images,neo-technology/docker-official-images,infosiftr/stackbrew,neo-technology/docker-official-images,docker-solr/official-images,docker-library/official-images,neo-technology/docker-official-images,docker-solr/official-images,docker-library/official-images,neo-technology/docker-official-images,neo-technology/docker-official-images,neo-technology/docker-official-images,docker-library/official-images,infosiftr/stackbrew,thresheek/official-images,docker-library/official-images,infosiftr/stackbrew,31z4/official-images,docker-solr/official-images,31z4/official-images,docker-library/official-images,31z4/official-images,docker-library/official-images,thresheek/official-images,docker-library/official-images,dinogun/official-images,infosiftr/stackbrew,docker-solr/official-images,31z4/official-images,neo-technology/docker-official-images,thresheek/official-images,docker-solr/official-images,infosiftr/stackbrew,neo-technology/docker-official-images,docker-solr/official-images,dinogun/official-images,thresheek/official-images,dinogun/official-images,docker-solr/official-images,docker-library/official-images,31z4/official-images,docker-library/official-images