third_party/py: add cockroachdb

Change-Id: I0c2f1e820b67bdebc98dd58429048c8a89d37416
diff --git a/third_party/py/requirements.txt b/third_party/py/requirements.txt
index d3c2089..c619738 100644
--- a/third_party/py/requirements.txt
+++ b/third_party/py/requirements.txt
@@ -6,6 +6,7 @@
 cffi==1.11.5
 chardet==3.0.4
 Click==7.0
+cockroachdb==0.3.3
 cryptography==2.4.2
 Django==2.2.3
 fabric==2.4.0
@@ -26,6 +27,7 @@
 oauthlib==2.1.0
 paramiko==2.4.2
 protobuf==3.9.0
+psycopg2==2.7.7
 pyasn1==0.4.5
 pycparser==2.19
 PyNaCl==1.3.0