Move testing requirements to separate file

Created requirements-testing.txt

.github/workflows/flask.yml

@@ -50,7 +50,7 @@ jobs:
         pip install virtualenv
         virtualenv env
         source env/bin/activate
-        pip install flake8 pytest coverage
+        pip install -r requirements-testing.txt
         pip install -r requirements.txt
 
     - name: Prepare database

requirements-testing.txt

@@ -0,0 +1,4 @@
+coverage
+flake8
+pytest==7.0.0
+requests-mock==1.5.2

requirements.txt

@@ -20,12 +20,10 @@ passlib==1.7.1
 phonenumbers==8.9.11
 psycopg2-binary==2.8.3
 PyJWT==2.0.0a1
-pytest==7.0.0
 python-dateutil==2.7.3
 python-decouple==3.3
 python-stdnum==1.9
 PyYAML==5.4
-requests-mock==1.5.2
 requests[security]==2.27.1
 sortedcontainers==2.1.0
 SQLAlchemy==1.2.17