Log Message:
oath-toolkit: update to 2.6.9

Changes since 2.6.7:

Version 2.6.9 (released 2023-07-09)
    Improve compatibility with recent libxmlsec.
    Update gnulib files, dropping gnulib self-tests.

Version 2.6.8 (released 2023-07-09)
    libpskc: Fixes for recent libxmlsec releases.
    pam_oath: Provide fallback pam_modutil_getpwnam implementation. Fixes \ 
https://gitlab.com/oath-toolkit/oath-toolkit/-/issues/26 on Mac OS.
    pam_oath: Don't fail authentication when pam_modutil_getpwnam doesn't
    Regression introduced in previous release.
    pam_oath: Self-test improvements.
    liboath: Builds on Windows. The oath_authenticate_usersfile function is just \ 
a stub that returns an error. This allows for use of the rest of the library on \ 
Windows.
    Disable PAM self-tests on Mac. Fix --enable-root-tests logic.
    Don't ship gtk-doc PDFs in tarball.
    Use gitlog-to-changelog instead of git2cl.
    Codespell typo fixes.