Update requirements

The subunit2sql requirements file was running caps on old versions,
because we encountered some bugs with newer versions of oslo libs. This
commit removes those caps to get us back on the latest versions.

Change-Id: Ia780ecc4b144c42c40710743ec73c8dc25d1cf94

requirements.txt

@@ -1,9 +1,9 @@
-pbr>=1.8
-alembic>=0.4.1
-oslo.config>=1.4.0.0a3
-oslo.db>=2.1.0,<4.15.0
+pbr>=2.0.0,!=2.1.0
+alembic>=0.8.10
+oslo.config>=4.0.0
+oslo.db>=4.24.0
 python-subunit>=0.0.18
-six>=1.5.2
-SQLAlchemy>=0.8.2
-stevedore>=1.3.0
+six>=1.9.0
+SQLAlchemy>=1.0.10,!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8
+stevedore>=1.20.0
 python-dateutil>=2.4.2

test-requirements.txt

@@ -14,3 +14,7 @@ oslo.concurrency>=3.5.0
 # releasenotes
 reno>=0.1.1 # Apache2
 openstackdocstheme>=1.11.0 # Apache-2.0
+# This is needed for oslo.db test code to be imported, it's not
+# directly installed by oslo.db
+testresources>=0.2.4 # Apache-2.0/BSD
+testscenarios>=0.4 # Apache-2.0/BSD