Update Psalm config

[kpicaza]

Warning: "findUnusedBaselineEntry" will default to "true" in Psalm 6. You should explicitly enable or disable this setting.
Warning: "findUnusedCode" will default to "true" in Psalm 6. You should explicitly enable or disable this setting.
Warning: "findUnusedBaselineEntry" will default to "true" in Psalm 6. You should explicitly enable or disable this setting.
Warning: "findUnusedCode" will default to "true" in Psalm 6. You should explicitly enable or disable this setting.