hasql-1.9 changed Hasql.Connection.acquire to accept a list of
connection settings instead of a connection string directly.
Adapt the test suite to the new connection settings API.
--- ../test/Hasql?NotificationsSpec.hs	2026-09-12 10:51:44.365311901 +0300
+++ ../test/Hasql/NotificationsSpec.hs	2026-09-12 10:52:22.751724713 +0300
@@ -1,3 +1,5 @@
+{-# LANGUAGE OverloadedStrings #-}
+
 module Hasql.NotificationsSpec (main, spec) where
 
 import Test.Hspec
@@ -10,6 +12,8 @@
 import Data.ByteString
 
 import Hasql.Connection
+import qualified Hasql.Connection.Setting as Setting
+import qualified Hasql.Connection.Setting.Connection as ConnectionSetting
 import Hasql.Notifications
 
 -- `main` is here so that this module can be run from GHCi on its own.  It is
@@ -22,7 +26,12 @@
   describe "send and receive notification" $
     describe "when I send a notification to channel my handler is listening to" $
       it "should call our notification handler" $ do
-        dbOrError <- acquire "postgres://postgres:roottoor@localhost/hasql_notifications_test"
+        dbOrError <-
+          acquire
+            [ Setting.connection
+                (ConnectionSetting.string
+                  "postgres://postgres:roottoor@localhost/hasql_notifications_test")
+            ]
         case dbOrError of
             Right db -> do
                 let channelToListen = toPgIdentifier "test-channel"