Pass PG* env variables to integration tests. (dbcli#1596)

Author: j-bennet

tox.ini

@@ -25,6 +25,14 @@ deps = uv
 allowlist_externals = behave
 commands = uv pip install -e .[dev]
         behave tests/features --no-capture
+passenv =
+    PGHOST
+    PGPORT
+    PGUSER
+    PGPASSWORD
+    PYTHONIOENCODING
+setenv =
+    PYTHONIOENCODING = utf-8
 
 [testenv:rest]
 skip_install = true