Enable more integration tests for python 3. (#17473)

* Enable more integration tests for python 3.
* Split out python 3 integration tests.

Now that we're running more integration tests on python 3, the
tests are taking long enough that they warrant splitting out in
the same way the python 2 tests are split.

shippable.yml

@@ -24,6 +24,7 @@ matrix:
     - env: TEST=integration TARGET=destructive IMAGE=ansible/ansible:ubuntu1204 PRIVILEGED=true
     - env: TEST=integration TARGET=destructive IMAGE=ansible/ansible:ubuntu1404 PRIVILEGED=true
     - env: TEST=integration TARGET=destructive IMAGE=ansible/ansible:ubuntu1604
+    - env: TEST=integration TARGET=destructive IMAGE=ansible/ansible:ubuntu1604py3 PYTHON3=1
 
     - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:centos6
     - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:centos7
@@ -33,6 +34,7 @@ matrix:
     - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:ubuntu1204
     - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:ubuntu1404
     - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:ubuntu1604
+    - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:ubuntu1604py3 PYTHON3=1
 
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:centos6
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:centos7
@@ -42,8 +44,7 @@ matrix:
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:ubuntu1204
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:ubuntu1404
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:ubuntu1604
-
+    - env: TEST=integration TARGET=other IMAGE=ansible/ansible:ubuntu1604py3 PYTHON3=1
-    - env: TEST=integration TARGET=all IMAGE=ansible/ansible:ubuntu1604py3 PYTHON3=1
 
     - env: TEST=sanity INSTALL_DEPS=1 TOXENV=py24
       python: 2.7

test/utils/shippable/python3-test-tag-blacklist.txt

@@ -1,6 +1,4 @@
 test_apache2_module
-test_apt
-test_apt_repository
 test_assemble
 test_authorized_key
 test_filters