Use psycopg2 instead of psycopg2-binary for postgres

psycopg/psycopg2#684 (comment) - Not supported on Alpine
(cherry picked from commit f9822ea)
(cherry picked from commit 947c05f)

setup.py

@@ -340,7 +340,7 @@ def write_version(filename=os.path.join(*["airflow", "git_version"])):
     'pinotdb==0.1.1',
 ]
 postgres = [
-    'psycopg2-binary>=2.7.4',
+    'psycopg2>=2.7.4',
 ]
 presto = [
     'presto-python-client>=0.7.0,<0.8'