address review

Author: blink1073

.evergreen/scripts/install-dependencies.sh

@@ -51,3 +51,5 @@ if ! command -v uv 2>/dev/null; then
   }
   echo "Installing uv... done."
 fi
+
+popd > /dev/null

.evergreen/scripts/setup-tests.py

@@ -127,8 +127,8 @@ def handle_test_env() -> None:
 
     if AUTH != "noauth":
         if is_set("TEST_DATA_LAKE"):
-            DB_USER = "mhuser"
-            DB_PASSWORD = "pencil"  # noqa: S105
+            DB_USER = os.environ["ADL_USERNAME"]
+            DB_PASSWORD = os.environ["ADL_PASSWORD"]
         elif is_set("TEST_SERVERLESS"):
             DB_USER = os.environ("SERVERLESS_ATLAS_USER")
             DB_PASSWORD = os.environ("SERVERLESS_ATLAS_PASSWORD")