Handle version 3.0 of flask-babel

requirements.txt

@@ -1,7 +1,7 @@
 APScheduler>=3.6.3,<3.10.0
 werkzeug<2.1.0
 Babel>=1.3,<3.0
-Flask-Babel>=0.11.1,<2.1.0
+Flask-Babel>=0.11.1,<3.1.0
 Flask-Login>=0.3.2,<0.6.3
 Flask-Principal>=0.3.2,<0.5.1
 backports_abc>=0.4
@@ -11,10 +11,10 @@ PyPDF>=3.0.0,<3.3.0
 pytz>=2016.10
 requests>=2.11.1,<2.28.0
 SQLAlchemy>=1.3.0,<1.5.0
-tornado>=4.1,<6.2
+tornado>=4.1,<6.3
 Wand>=0.4.4,<0.7.0
 unidecode>=0.04.19,<1.4.0
 lxml>=3.8.0,<5.0.0
-flask-wtf>=0.14.2,<1.1.0
+flask-wtf>=0.14.2,<1.2.0
 chardet>=3.0.0,<4.1.0
 advocate>=1.0.0,<1.1.0