Fix unit test. Try CI grunt on all CI versions.

.github/workflows/moodle-ci.yml

@@ -164,7 +164,7 @@ jobs:
         run: moodle-plugin-ci mustache
 
       - name: Grunt
-        if: ${{ matrix.moodle-branch == 'MOODLE_401_STABLE' }}
+        if: ${{ always() }}
         run: moodle-plugin-ci grunt
 
       - name: PHPUnit tests

tests/docslib_test.php

@@ -53,6 +53,9 @@ class docslib_test extends qtype_stack_testcase {
                 '<li><a href="WWWROOT/question/type/stack/doc.php/Installation/Migration.md">Migration</a></li>' .
                 '<li><a href="WWWROOT/question/type/stack/doc.php/Installation/Optimising_Maxima.md">' .
                         'Optimising Maxima</a></li>' .
+                '<li><a href="WWWROOT/question/type/stack/doc.php/Installation/Release_notes_4_4_x.md">' .
+                        'Release notes 4 4 x</a></li>' .
+                '<li><a href="WWWROOT/question/type/stack/doc.php/Installation/STACK_versions.md">STACK versions</a></li>' .
                 '<li><a href="WWWROOT/question/type/stack/doc.php/Installation/Testing_installation.md">' .
                         'Testing installation</a></li></ul>'),
                 stack_docs_index($CFG->dirroot . '/question/type/stack/doc/en/Installation',