updated mensa URL, thanks to Hannes B.

src/test/kotlin/org/mosad/thecitadelofricks/hsoparser/MensaParserTest.kt

@@ -28,7 +28,7 @@ import org.junit.jupiter.api.Test
 import java.io.File
 
 internal class MensaParserTest {
-    private val mensaMenuURL = "https://www.swfr.de/de/essen-trinken/speiseplaene/mensa-offenburg/"
+    private val mensaMenuURL = "https://www.swfr.de/essen-trinken/speiseplaene/mensa-offenburg/"
 
     @Test
     fun parseMensaMenuNormalWeek() {
@@ -57,4 +57,4 @@ internal class MensaParserTest {
         val urlNextWeek = MensaParser().getMenuLinkNextWeek(mensaMenuURL) // this need a connection to the swfr server
         Assertions.assertNotNull(urlNextWeek)
     }
-}
+}