Fixed webhook equals operator from $eq to $e

[Lumpiness]

In the webhook listeners source code, the equals function is called by the $e operator, but not by $eq

[come-nc]

/backport to stable30

[come-nc]

@Lumpiness Could you fix DCO on the commit as explained in https://github.com/nextcloud/documentation/pull/12232/checks?check_run_id=30692244879 ?

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[nickvergessen]

/backport to stable31

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