Issue #3014121 by Geordi, shreyakaushik11, anmolgoyal74, msankhala, rwohleb, rachel_norfolk, akanksha-hp, jhodgdon: Attribute.php code snippet not properly escaped

Issue #3139422 by sja112, jungle, akanksha-hp, mondrake, xjm: Replace usages of deprecated AssertLegacyTrait::assertOptionByText()