Deletions sends back a 500 to Bitbucket

[langecode]

Component

server

Describe the bug

When branch is deleted the corresponding even causes Woodpecker to return status 500 to Bitbucket - it should just be ignored

System Info

{
    "changes": [
        {
            "ref": {
                "id": "refs/heads/feature/woodpecker-dir",
                "displayId": "feature/woodpecker-dir",
                "type": "BRANCH"
            },
            "refId": "refs/heads/feature/woodpecker-dir",
            "fromHash": "e5ad3f24214dfc7c1b142489777507c34bb11a7c",
            "toHash": "0000000000000000000000000000000000000000",
            "type": "DELETE"
        }
    ]
}

Additional context

No response

Validations

• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Checked that the bug isn't fixed in the next version already [https://woodpecker-ci.org/faq#which-version-of-woodpecker-should-i-use]
• Check that this is a concrete bug. For Q&A join our Discord Chat Server or the Matrix room.