Restart static paths worker after finishing task (#47716)
Noticed this optimization when debugging something else - we restart
this worker if it's not fresh, to make sure module instances are new
created. This has some perf overhead and it happens right before running
the task and it's blocking the request. This PR changes that to be after
the old task, and the difference is noticeable on dev (~20ms).
Before:
<img width="1363" alt="CleanShot-2023-03-30-jTT9W48H@2x"
src="https://user-images.githubusercontent.com/3676859/228965542-e0d6892f-3989-4da5-96a4-5fc8b4155041.png">
After:
<img width="1363" alt="CleanShot-2023-03-30-PRrYQMg7@2x"
src="https://user-images.githubusercontent.com/3676859/228965566-42e04f8d-0cc3-447c-adc8-3840b23b9fa5.png">
