Fix static test failures

Author: glo60612

app/code/Magento/Tax/Test/Unit/Model/Sales/Total/Quote/CommonTaxCollectorTest.php

@@ -457,6 +457,7 @@ public function testMapItemSetsExtensionAttributePriceForTaxCalculation(): void
             /**
              * @param float|null $priceForTaxCalculation
              * @return $this
+             * @SuppressWarnings(PHPMD.UnusedLocalVariable)
              */
             public function setPriceForTaxCalculation($priceForTaxCalculation)
             {
@@ -1310,6 +1311,7 @@ public function testConstructorFallsBackToObjectManagerForOptionalDependencies()
             /**
              * @param float|null $priceForTaxCalculation
              * @return $this
+             * @SuppressWarnings(PHPMD.UnusedLocalVariable)
              */
             public function setPriceForTaxCalculation($priceForTaxCalculation)
             {