MarkupSafe requirement for html plugin

This adds markupsafe<3.0.0 requirements to html plugin, because
markupsafe-3.0.0 can't be installed with older versions of setuptools on
RHEL9 and other systems because of `CCompilerError`.

We need to add the same requirement to `ansible` plugin,
because it would try to install markupsafe-3.0.0

Reference: #6038
Signed-off-by: Jan Richter <jarichte@redhat.com>

optional_plugins/ansible/setup.py

@@ -41,6 +41,7 @@
         "cffi",
         "pycparser",
         "ansible-core",
+        "markupsafe<3.0.0",
     ],
     test_suite="tests",
     entry_points={

optional_plugins/html/setup.py

@@ -39,7 +39,7 @@ def get_long_description():
     url="http://avocado-framework.github.io/",
     packages=find_packages(),
     include_package_data=True,
-    install_requires=[f"avocado-framework=={VERSION}", "jinja2"],
+    install_requires=[f"avocado-framework=={VERSION}", "jinja2", "markupsafe<3.0.0"],
     entry_points={
         "avocado.plugins.cli": [
             "html = avocado_result_html:HTML",