[DRE-maint] Bug#1064333: passenger's autopkg tests fail with Python 3.12

[Matthias Klose]

Package: src:passenger
Version: 6.0.17+ds-1
Severity: important
Tags: sid trixie ftbfs patch
User: debian-python at lists.debian.org
Usertags: python3.12

this is fixed in upstream 6.0.20. I pulled these changes into the 6.0.17 
package. See
https://launchpadlibrarian.net/715180401/passenger_6.0.17+ds-1build2_6.0.17+ds-1ubuntu1.diff.gz