Revert "ensure tests run"

This reverts commit 31b9d01.

.github/workflows/tests.yml

@@ -16,9 +16,7 @@ on:
 jobs:
   matrix:
     name: Determine if the `next` tag is higher than the `latest` tag
-    # this is meant to skip running tests from the `pull_request` event if the `push` event already triggered the tests,
-    # but the `push` event doesn't seem to trigger right now - disabling this for now
-    # if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     runs-on: ubuntu-latest
     outputs:
       version: ${{ steps.version.outputs.matrix }}