Update gitdb to 4.0.1, gitdb2 to 4.0.2

The gitdb 4.0.0 release and gitdb2 4.0.1 release has been deleted from
PyPi and (if I'm reading [1] correctly, which is a big *if*) has been
replaced with 4.0.1 and 4.0.2 respectively.  [1]:

  gitdb v4.0.1 and gitdb2 v4.0.2 should be functionally equivalent to
  gitdb2 v3.0.3 with gitdb v4.0.2 simply installing gitdb >= 4.0.1 and
  with gitdb v4.0.1 requiring smmap rather than smmap2
  (gitpython-developers/smmap#44).

Additionally, it seems that gitdb now also requires smmap>=3.0.1.
This project is in a similar renaming phase, but 3.0.1 seems to be the
correct place to be [2]:

  v3.0.1 for both packages should be functionally equivalent to smmap2
  v2.0.5, with smmap2 v3.0.1 simply installing smmap >= 3.0.1.

Additionally additionally, there appears to be a problem with
cross-horizon-npm not obeying new constraints in it's job (possibly
this is the first time packages horizon cares about have broken?).
Since this blocks this change from merging, set the job to non-voting
until we can fix this in a follow-on.

[1] gitpython-developers/gitdb#59
[2] gitpython-developers/smmap#44

Change-Id: I268fb7e1dc753c82983736572b3df2f152f8cf51

.zuul.d/project.yaml

@@ -22,7 +22,8 @@
         - cross-cinder-py36
         - cross-glance-py36
         - cross-horizon-py36
-        - cross-horizon-npm
+        - cross-horizon-npm:
+            voting: false
         - cross-keystone-py36
         - cross-neutron-py36
         - cross-nova-py36

upper-constraints.txt

@@ -14,7 +14,7 @@ python-saharaclient===3.0.0;python_version=='3.7'
 python-hnvclient===0.1.0
 Routes===2.4.1
 rtslib-fb===2.1.71
-smmap===3.0.0
+smmap===3.0.1
 confget===2.3.0
 XStatic-Angular-Bootstrap===2.2.0.0
 paunch===6.0.1
@@ -428,8 +428,8 @@ oslo.vmware===2.35.0;python_version=='2.7'
 oslo.vmware===3.0.0;python_version=='3.6'
 oslo.vmware===3.0.0;python_version=='3.7'
 sqlalchemy-migrate===0.13.0
-gitdb===4.0.0;python_version=='3.6'
-gitdb===4.0.0;python_version=='3.7'
+gitdb===4.0.1;python_version=='3.6'
+gitdb===4.0.1;python_version=='3.7'
 python-monascaclient===1.16.0;python_version=='2.7'
 python-monascaclient===2.0.0;python_version=='3.6'
 python-monascaclient===2.0.0;python_version=='3.7'
@@ -748,7 +748,7 @@ zipp===1.2.0;python_version=='2.7'
 zipp===3.0.0;python_version=='3.6'
 zipp===3.0.0;python_version=='3.7'
 sphinxcontrib-fulltoc===1.2.0
-smmap2===3.0.0;python_version=='2.7'
+smmap2===3.0.1;python_version=='2.7'
 greenlet===0.4.15
 XStatic-Angular-Vis===4.16.0.0
 confluent-kafka===1.3.0
@@ -773,8 +773,8 @@ oslo.utils===4.0.0;python_version=='3.6'
 oslo.utils===4.0.0;python_version=='3.7'
 python-editor===1.0.4
 gitdb2===2.0.6;python_version=='2.7'
-gitdb2===4.0.1;python_version=='3.6'
-gitdb2===4.0.1;python_version=='3.7'
+gitdb2===4.0.2;python_version=='3.6'
+gitdb2===4.0.2;python_version=='3.7'
 requests-kerberos===0.12.0
 itsdangerous===1.1.0
 XStatic-jquery-ui===1.12.1.1