Fix reichelt id extractor

src/main/java/com/penguineering/cleanuri/site/implementations/reichelt/ProductDataExtractor.java

@@ -29,7 +29,7 @@ public Optional<ProductDescription> extractProductDescription() {
             if (productElement == null)
                 return Optional.empty();
 
-            Optional<Element> productIdElement = Optional.ofNullable(productElement.selectFirst("div.productBuyArea > div.productBuy > p > span"));
+            Optional<Element> productIdElement = Optional.ofNullable(productElement.selectFirst("div.productBuyArea > div.productBuy > small > span > b"));
             Optional<Element> productNameElement = Optional.ofNullable(productElement.selectFirst("div.productBuyArea > div.productBuy > h1"));
             Optional<Element> productImageElement = Optional.ofNullable(document.selectFirst("img[itemprop=image]"));
 

src/test/java/com/penguineering/cleanuri/site/implementations/reichelt/TestPriceExtractor.java

@@ -33,7 +33,7 @@ public class TestPriceExtractor {
      */    @ParameterizedTest
     @CsvSource({
             "testdata/reichelt/reichelt-p10228.html, 0.07, ''",
-            "testdata/reichelt/reichelt-p58170.html, 2.20, '10:2.090,50:1.870,100:1.650'"
+            "testdata/reichelt/reichelt-p58170.html, 2.10, '10:1.995,50:1.785,100:1.575'"
     })
     public void testExtractPricing(String fileName, String expectedUnitPriceStr, String expectedDiscountsStr) throws IOException {
         BigDecimal expectedUnitPrice = new BigDecimal(expectedUnitPriceStr);