[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: 7551e526 targetRevisionAtLastExport: 8d2e4f0a64

implementation-contributed/curation_logs/v8.json

 {
-  "sourceRevisionAtLastExport": "7551e526",
-  "targetRevisionAtLastExport": "8d2e4f0a64",
+  "sourceRevisionAtLastExport": "5ba032b3",
+  "targetRevisionAtLastExport": "41874187df",
   "curatedFiles": {}
 }
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