Fix some "source_url" in "tasks_metadata.json"

tasks_metadata.json

@@ -169,7 +169,7 @@
   },
   "benczechmark_csfever_nli": {
     "name": "CSFEVER",
-    "source_url": "https://huggingface.co/datasets/CZLC/ctu-aic/csfever_nli",
+    "source_url": "https://huggingface.co/datasets/ctu-aic/csfever_nli",
     "short_name": "CSFever NLI",
     "category": "NLI",
     "abbreviation": "CFR",
@@ -177,7 +177,7 @@
   },
   "benczechmark_ctkfacts_nli": {
     "name": "CTKFACTS",
-    "source_url": "https://huggingface.co/datasets/CZLC/ctu-aic/ctkfacts_nli",
+    "source_url": "https://huggingface.co/datasets/ctu-aic/ctkfacts_nli",
     "short_name": "CTKFacts NLI",
     "category": "NLI",
     "abbreviation": "CTK",
@@ -425,7 +425,7 @@
   },
   "benczechmark_snli": {
     "name": "Czech SNLI",
-    "source_url": "https://huggingface.co/datasets/CZLC/snli",
+    "source_url": "https://huggingface.co/datasets/CZLC/cs_snli",
     "abbreviation": "SNLI",
     "category": "NLI",
     "short_name": "Czech SNLI",