Log Message:
dbus-python-common: update to 1.2.18.

dbus Python Bindings 1.2.18 (2021-07-20)
========================================

Build-time configuration changes:

• dbus-python will be built for python3 if neither PYTHON nor
  PYTHON_VERSION is specified. Use a command like

      ./configure PYTHON=$(command -v python2)

  if installation for Python 2 (EOL 2020-01-01) is required.

Dependencies:

• Python 2 reached end-of-life on 2020-01-01. A future version of
  dbus-python is likely to remove Python 2 support.

Fixes:

• Move from collections.Sequence to collections.abc.Sequence on
  Python ≥ 3.3, for Python 3.10 compatibility
  (dbus-python#37; Simon McVittie)

• Avoid another deprecation warning for inspect.getargspec().
  This is similar to the one fixed in 1.2.4, but for dbus.decorators.signal
  rather than dbus.decorators.method. (dbus-python!8; Martin Stumpf)

• Fix an unlikely fd leak if memory allocation fails for UnixFd
  (dbus-python!9, Red Hat #1938703; David King)

• Fix memory and fd leak if UnixFd is given an invalid negative
  variant_level (Simon McVittie)

• Avoid more deprecation warnings:
  - gi.repository.GObject.MainLoop etc. (now used via gi.repository.GLib)
  - gi.repository.GLib.threads_init (no longer necessary at all)
  (Simon McVittie)

• Disable -Wdeclaration-after-statement. Python 3.9 relies on intermixed
  declarations and statements in its headers, so we can no longer
  enforce this. (Simon McVittie)

• Convert examples to Python 3 (Simon McVittie)

• Use the same Python executable for build and dist/distcheck by default
  (Simon McVittie)

CI fixes:

• Stop installing tap.py for Python 2. The latest version only supports
  Python 3. (Simon McVittie)

• Move from Python 3.8 on Debian unstable (no longer available) to
  3.9 on Debian 11 (Simon McVittie)

• Also test with Python 3.10 on Ubuntu 21.10 (Simon McVittie)

• Remove Travis-CI integration, only use Gitlab-CI (Simon McVittie)