Fix BvbFetcherTest

[koppor]

Fix the fetcher - see https://devdocs.jabref.org/code-howtos/fetchers.html for help

BvbFetcherTest > performTest() FAILED
    org.jabref.logic.importer.FetcherException at BvbFetcherTest.java:55
        Caused by: java.net.SocketTimeoutException at BvbFetcherTest.java:55

BvbFetcherTest > performSearchMatchingMultipleEntries() FAILED
    org.jabref.logic.importer.FetcherException at BvbFetcherTest.java:84
        Caused by: java.net.SocketTimeoutException at BvbFetcherTest.java:84

[thesauravpoddar]

/assign-me

[jabref-machine]

⚠️ Assignment Limit Reached

Hi @thesauravpoddar, you've reached the maximum number of 3 concurrent assignments.

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