uriescape is no longer available in Puppet 8

[Takashi Kajinami]

The following error is seen in puppet 8 unit tests.

```
1) nova::migration::libvirt on centos-9-x86_64 behaves like nova migration with libvirt with ssh transport with extraparams is expected to contain Nova_config[libvirt/live_migration_uri] with value => "qemu+ssh://%s/system?foo=%%25&bar=baz"
   Failure/Error: raise(Puppet::ParseError, 'Puppet: This function is not available in Puppet 8. URI.escape no longer exists as of Ruby 3+.') if Puppet::Util::Package.versioncmp(Puppet.version, '8').positive?

   Puppet::PreformattedError:
     Evaluation Error: Error while evaluating a Function Call, Puppet: This function is not available in Puppet 8. URI.escape no longer exists as of Ruby 3+. (file: /home/zuul/workspace/spec/fixtures/modules/nova/manifests/migration/libvirt.pp, line: 239, column: 49) on node np0037056051
   Shared Example Group: "nova migration with libvirt" called from ./spec/classes/nova_migration_libvirt_spec.rb:478
```

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/puppet-nova/+/912835

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/puppet-nova/+/912835
Committed: https://opendev.org/openstack/puppet-nova/commit/2dcad6d8dc6777e67f19e4c7c8a55172dbbd5250
Submitter: "Zuul (22348)"
Branch: master

commit 2dcad6d8dc6777e67f19e4c7c8a55172dbbd5250
Author: Takashi Kajinami <email address hidden>
Date: Thu Mar 14 11:59:05 2024 +0900

    Replace usage of uriescape

    The uriescape function from puppetlabs-stdlib is no longer functional
    in Puppet 8, because the URI.escape, which is internally used by that
    function, is no longer available in Ruby 3+.

    This replaces the function by own function to avoid the failure in
    Puppet 8.

    Closes-Bug: #2057860
    Change-Id: I7b4db4c1e64416e20d8470cbff0b8497c6a0cfc9

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/puppet-nova 24.0.0 release.