Merge branch refs/heads/2.1.x into 2.2.x

Author: phpstan-bot

tests/PHPStan/Rules/Comparison/ElseIfConstantConditionRuleTest.php

@@ -147,7 +147,7 @@ public function testBug6947(): void
 			[
 				'Elseif condition is always false.',
 				13,
-				"• Because the type is coming from a PHPDoc, you can turn off this check by setting <fg=cyan>treatPhpDocTypesAsCertain: false</> in your <fg=cyan>%configurationFile%</>.\n• If Bug6947\HelloWorld::getValue() is impure, add <fg=cyan>@phpstan-impure</> PHPDoc tag above its declaration.",
+				"• Because the type is coming from a PHPDoc, you can turn off this check by setting <fg=cyan>treatPhpDocTypesAsCertain: false</> in your <fg=cyan>%configurationFile%</>.\n• If Bug6947\HelloWorld::getValue() is impure, add <fg=cyan>@phpstan-impure</> PHPDoc tag above its declaration. Learn more: <fg=cyan>https://phpstan.org/blog/remembering-and-forgetting-returned-values</>",
 			],
 		]);
 	}