CI: regenerate helptags, fix ci help tags job failing

Signed-off-by: Christian Brabandt <cb@256bit.org>

.github/workflows/ci.yml

@@ -270,6 +270,7 @@ jobs:
             git diff --exit-code -- tags
             make html; rm *.html tags.ref;
             test -f errors.log && exit 3;
+            true
           )
 
       - name: Generate gcov files