Update dependencies

- update ChangeLog (weblate merge, requirements update)
- update dependencies in requirements.txt

ChangeLog

@@ -1,3 +1,7 @@
+unreleased  Jan Dittberner  <jan@dittberner.info>
+	* add updated translations from Weblate
+	* update dependencies
+
 2021-10-24  Jan Dittberner  <jan@dittberner.info>
 	* add updated translations from Weblate
 	* fix NM URL (thanks Diederik de Haas)

requirements.txt

@@ -1,11 +1,12 @@
-Flask==0.12.2
-Jinja2==2.9.6
-MarkupSafe==1.1.0
-Werkzeug==0.12.2
-itsdangerous==0.24
-Babel==2.5.0
-Flask-Babel==0.11.2
-pytz==2017.2
+Flask==2.2.2
+Jinja2==3.1.2
+MarkupSafe==2.1.1
+Werkzeug==2.2.2
+itsdangerous==2.1.2
+Babel==2.10.3
+Flask-Babel==2.0.0
+pytz==2022.2.1
 speaklater==1.3
-Flask-WTF==0.14.2
-WTForms==2.1
+Flask-WTF==1.0.1
+WTForms==3.0.1
+email-validator==1.3.0