Description of problem:
Upgraded from Fedora 37 to Fedora 38 (beta), ensured all packages were up-to-date and, finally, proceeded to open Komikku.

Version-Release number of selected component:
komikku-1.14.0-1.fc38

Additional info:
reporter:       libreport-2.17.8
kernel:         6.2.6-300.fc38.x86_64
cmdline:        /usr/bin/python3 /usr/bin/komikku
cgroup:         0::/user.slice/user-1000.slice/user/app.slice/app-gnome-info.febvre.Komikku-44675.scope
uid:            1000
reason:         __init__.py:129:require_version:ValueError: Namespace WebKit2 not available for version 5.0
executable:     /usr/bin/komikku
type:           Python3
package:        komikku-1.14.0-1.fc38
runlevel:       N 5
exception_type: ValueError
crash_function: require_version
interpreter:    python3-3.11.2-1.fc38.x86_64
comment:        Upgraded from Fedora 37 to Fedora 38 (beta), ensured all packages were up-to-date and, finally, proceeded to open Komikku.

Truncated backtrace:
__init__.py:129:require_version:ValueError: Namespace WebKit2 not available for version 5.0

Traceback (most recent call last):
  File "/usr/bin/komikku", line 88, in <module>
    from komikku.application import Application
  File "/usr/lib/python3.11/site-packages/komikku/application.py", line 28, in <module>
    from komikku.debug_info import DebugInfo
  File "/usr/lib/python3.11/site-packages/komikku/debug_info.py", line 11, in <module>
    gi.require_version('WebKit2', '5.0')
  File "/usr/lib64/python3.11/site-packages/gi/__init__.py", line 129, in require_version
    raise ValueError('Namespace %s not available for version %s' %
ValueError: Namespace WebKit2 not available for version 5.0

Local variables in innermost frame:
namespace: 'WebKit2'
version: '5.0'
repository: <gi.Repository object at 0x7fbacb11b010>
available_versions: ['4.1', '4.0']