Merge branch 'fix/flask-version-context-compute' into 'develop'

Update Flask version on Compute and Context components

See merge request teraflow-h2020/controller!143

src/compute/requirements.in

-Flask==2.0.2
+Flask==2.1.3
 Flask-HTTPAuth==4.5.0
 Flask-RESTful==0.3.9
 jsonschema==4.4.0

src/context/requirements.in

-Flask==2.0.2
+Flask==2.1.3
 Flask-RESTful==0.3.9
 redis==4.1.2
 requests==2.27.1