Fix black issues and run tox properly in stage-test

Change-Id: Ie08f3029df03f97f1df1461a564c24ce024974fe
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 2036d20..f46b9f9 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -36,7 +36,6 @@
 cffi==1.15.1
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=master
-    #   bcrypt
     #   cryptography
     #   pynacl
 charset-normalizer==2.1.1
@@ -149,7 +148,7 @@
     #   juju
     #   jujubundlelib
     #   kubernetes
-requests==2.28.0
+requests==2.28.1
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=master
     #   kubernetes
@@ -162,7 +161,7 @@
     #   kubernetes
 retrying-async==2.0.0
     # via -r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=master
-rsa==4.8
+rsa==4.9
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=master
     #   google-auth