Update Autofill UI test to reflect updated app copy (#3158)

Task/Issue URL: https://app.asana.com/0/414709148257752/1207921435391441/f
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Description:
Fixes failing UI test due to copy change

.maestro/release_tests/password-autofill.yaml

@@ -57,7 +57,7 @@ tags:
 - assertVisible: "[email protected]"
 - tapOn: "[email protected]"
 
-- assertVisible: "Unlock to use saved password"
+- assertVisible: "Unlock device to use saved password"
 - inputText: "passcode"
 - pressKey: Enter
 
@@ -73,7 +73,7 @@ tags:
 - assertVisible: "[email protected]"
 - tapOn: "[email protected]"
 
-- assertVisible: "Unlock to use saved password"
+- assertVisible: "Unlock device to use saved password"
 - inputText: "passcode"
 - pressKey: Enter