For jinja autoescape, mark HTML strings as safe, not needing escaping

For contexts where Jinja's autoescape is enabled, this is necessary for keeping this string working without it being escaped.
(This might become the default behavior in the next version of MkDocs)

If so, the HTML will be pasted like this into the doc:

    <span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-date">March 17, 2022</span>

When Jinja's autoescape is not enabled, there's no change in behavior.

Author: oprypin

mkdocs_git_revision_date_localized_plugin/util.py

@@ -3,6 +3,8 @@
 import os
 import time
 
+from markupsafe import Markup
+
 from mkdocs_git_revision_date_localized_plugin.ci import raise_ci_warnings
 from mkdocs_git_revision_date_localized_plugin.dates import get_date_formats
 
@@ -85,7 +87,7 @@ def get_git_commit_timestamp(
                 commit_timestamp = git.log(
                     realpath, date="unix", format="%at", diff_filter="A", no_show_signature=True, follow=True
                 )
-                # A file can be created multiple times, through a file renamed. 
+                # A file can be created multiple times, through a file renamed.
                 # Commits are ordered with most recent commit first
                 # Get the oldest commit only
                 if commit_timestamp != "":
@@ -165,7 +167,7 @@ def get_date_formats_for_timestamp(
             dict: Localized date variants.
         """
         date_formats = get_date_formats(
-            unix_timestamp=commit_timestamp, 
+            unix_timestamp=commit_timestamp,
             time_zone=self.config.get("timezone"),
             locale=locale,
             custom_format=self.config.get('custom_format')
@@ -183,7 +185,7 @@ def add_spans(date_formats: Dict[str, str]) -> Dict[str, str]:
         """
         for date_type, date_string in date_formats.items():
             date_formats[date_type] = (
-                '<span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-%s">%s</span>'
+                Markup('<span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-%s">%s</span>')
                 % (date_type, date_string)
             )
         return date_formats

requirements.txt

@@ -1,4 +1,5 @@
 mkdocs>=1.0
 GitPython
 babel>=2.7.0
-pytz
+pytz
+markupsafe