Update base url

they updated their websites. we should use the latest base url

europarl_bilingual.py

@@ -72,8 +72,8 @@ for i in range(len(LANGUAGES)):
         ALL_PAIRS.append((LANGUAGES[i], LANGUAGES[j]))
 
 _VERSION = "8.0.0"
-_BASE_URL_DATASET = "https://opus.nlpl.eu/download.php?f=Europarl/v8/raw/{}.zip"
-_BASE_URL_RELATIONS = "https://opus.nlpl.eu/download.php?f=Europarl/v8/xml/{}-{}.xml.gz"
+_BASE_URL_DATASET = "https://object.pouta.csc.fi/OPUS-Europarl/v8/raw/{}.zip"
+_BASE_URL_RELATIONS = "https://object.pouta.csc.fi/OPUS-Europarl/v8/xml/{}-{}.xml.gz"
 
 
 class EuroparlBilingualConfig(datasets.BuilderConfig):