add note about restarting the runner service after changing the .env …

[christianspecht]

…file

Why:

Because I spent about half an hour scratching my head why my script defined in the .env file was not executed, until I had the idea to restart the runner service.
I assumed that the runner read the file before each job run, IMO it's not obvious that it only happens after restarting.

IMO it's not obvious that the runner only reads the file after restarting, I assumed that it happens before each job run.

Closes:

What's being changed (if available, include any code snippets, screenshots, or gifs):

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The table contains an overview of files in the content directory that have been changed in this pull request. It's provided to make it easy to review your changes on the staging site. Please note that changes to the data directory will not show up in this table.

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Content directory changes

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Source	Preview	Production	What Changed
actions/hosting-your-own-runners/managing-self-hosted-runners/running-scripts-before-or-after-a-job.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10

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fpt: Free, Pro, Team
ghec: GitHub Enterprise Cloud
ghes: GitHub Enterprise Server

[nguyenalex836]

@christianspecht Thanks so much for opening a PR! I'll get this triaged for review ✨

[github-actions]

Thanks for opening a pull request! We've triaged this issue for technical review by a subject matter expert 👀