Update required PAT permissions in publishing.md (#1707)

When generating the PAT, checking "workflow" is needed.

doc/publishing.md

@@ -40,8 +40,8 @@ in beta and not documented here yet. Follow these steps to create a classic PAT:
 1. Click on "Developer settings" entry at the bottom in your Settings page.
 1. Click on "Personal access tokens" and then "Tokens (classic)".
 1. Click on "Generate new token" and the select the classic variant.
-1. In the "Select scopes" section, under "repo", check "public_repo". This is
-   the only permission needed for this PAT.
+1. In the "Select scopes" section, under "repo", check "public_repo" and "workflow". Those are
+   the only permissions needed for this PAT.
 1. Click on "Generate token" at the bottom.
 
 You will get the PAT string after completing the generation.