Update dependency Flask to v1.1.4

Author: renovate[bot]

_RESOURCES/course-work/python-project-starter/Pipfile

@@ -9,7 +9,7 @@ gunicorn = "==20.0.4"
 itsdangerous = "==1.1.0"
 python-dotenv = "==0.14.0"
 six = "==1.15.0"
-Flask = "==1.1.2"
+Flask = "==1.1.4"
 Flask-Cors = "==3.0.8"
 Flask-SQLAlchemy = "==2.4.4"
 Flask-WTF = "==0.14.3"