Fix bug with merge request negated labels GraphQL query

What does this MR do and why?

Fixes https://gitlab.com/gitlab-org/quality/triage-ops/-/jobs/9843863574

$ bin/run_with_sentry gitlab-triage -r ./plugins/all --debug -f $TRIAGE_POLICY_FILE --token $GITLAB_BOT_API_TOKEN_ON_COM --source $TRIAGE_SOURCE_TYPE --source-id $TRIAGE_SOURCE_PATH $EXTRA_FLAGS
I, [2025-04-28T00:09:33.547564 #34]  INFO -- sentry: ** [Raven] Raven 3.1.2 ready to catch errors
/builds/gitlab-org/quality/triage-ops/vendor/ruby/3.2.0/gems/gitlab-triage-1.44.4/lib/gitlab/triage/network_adapters/graphql_adapter.rb:44: InputObject 'MergeRequestsResolverNegatedParams' doesn't accept argument 'labels' (GraphQL::Client::ValidationError)

Diff

1.44.4...dfbee64e

Checklist

• Diff link is up-to-date.
• Check the release notes: https://gitlab.com/api/v4/projects/3430480/repository/changelog?version=1.44.5
• Based on the diff and the release notes, version.rb is updated, according to SemVer.