Improvements around validity checks for redirect urls (matomo-org#22474)

* Improve URL check for logme redirect (matomo-org#22402)

* Improve validity check for redirect urls (matomo-org#22412)

Update version

fix version

Release Matomo 5.1.0

Bump version number

[automatic composer updates] (matomo-org#22260)

* Update composer dependencies

* Updates expected test files

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Co-authored-by: sgiehl <sgiehl@users.noreply.github.com>
Co-authored-by: sgiehl <stefan@matomo.org>

preview release

Update version

Update Version.php

Update core version to 5.1.0-b3