[v8-test262-automation] Updated curation log with latest revision sha's from...

[v8-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: 27dc9fa5 targetRevisionAtLastExport: d38e98d1

implementation-contributed/curation_logs/v8.json

 {
-  "sourceRevisionAtLastExport": "27dc9fa5",
-  "targetRevisionAtLastExport": "d38e98d1f3",
+  "sourceRevisionAtLastExport": "f5cf90cc",
+  "targetRevisionAtLastExport": "edab36a568",
   "curatedFiles": {}
 }
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