(build) make docs publish manually trigger-able

Author: arturcic

.github/workflows/docs.yml

@@ -13,7 +13,6 @@ jobs:
   build:
     runs-on: ubuntu-latest
     env:
-      GITHUB_USERNAME: ${{ github.repository_owner }}
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
     -

build/docs/Tasks/PublishDocs.cs

@@ -34,7 +34,7 @@ public override bool ShouldRun(BuildContext context)
         {
             var shouldRun = true;
             shouldRun &= context.ShouldRun(context.DirectoryExists(Paths.Docs), "Wyam documentation directory is missing");
-            shouldRun &= context.ShouldRun(context.IsStableRelease || context.IsPreRelease, $"{nameof(PublishDocs)} works only for releases.");
+            shouldRun &= context.ShouldRun(context.IsStableRelease || context.IsPreRelease || context.ForcePublish, $"{nameof(PublishDocs)} works only for releases.");
 
             return shouldRun;
         }