The add-groups scenario pinned debian:bullseye. Debian 11 is end-of-life
and its security pool is no longer served, so the scenario now fails while
installing sudo/git/gnupg2:

  E: Failed to fetch http://deb.debian.org/debian-security/pool/updates/
     main/s/sudo/sudo_1.9.5p2-3+deb11u4_amd64.deb

Upstream removed debian:11 from the CI matrices for this reason (devcontainers#1736);
this was the last reference left in the repository. Switched to
debian:trixie, already the most used Debian image in this scenario file.
Nothing in add-groups.sh is release-specific.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* Initial plan

* Add ohMyZshTheme option to common-utils feature

Co-authored-by: the78mole <7723396+the78mole@users.noreply.github.com>

* Add test scenario for custom zsh theme

Co-authored-by: the78mole <7723396+the78mole@users.noreply.github.com>

* Add validation for theme name to prevent injection attacks

Co-authored-by: the78mole <7723396+the78mole@users.noreply.github.com>

* Bump version from 2.5.7 to 2.5.8

* Add support for additional non-root user groups in common-utils feature

* Bump version to 2.6.0 in devcontainer feature

* "Add/update ko-fi sponsorship to $KOIFI"

* Fix FUNDING.yml: ko-fi -> ko_fi (underscore)

* common-utils: drop stray FUNDING.yml, bump to 2.7.0

The FUNDING.yml was added to this fork by accident and never belonged in
PR #1564. It was malformed anyway — the first line
held two U+FFFD replacement characters left over from an unexpanded shell
variable. Upstream carries no FUNDING.yml, so the file is simply removed.

Bump common-utils 2.6.0 -> 2.7.0: upstream released `sudoers` as 2.6.0,
while this fork's 2.6.0 already carried `ohMyZshTheme` and `addGroups`.
After the merge the same version number would describe two different
option sets, so the merged feature needs its own version.

* test(common-utils): move add-groups scenario off EOL debian:11

The add-groups scenario pinned debian:bullseye. Debian 11 is end-of-life
and its security pool is no longer served, so the scenario now fails while
installing sudo/git/gnupg2:

  E: Failed to fetch http://deb.debian.org/debian-security/pool/updates/
     main/s/sudo/sudo_1.9.5p2-3+deb11u4_amd64.deb

Upstream removed debian:11 from the CI matrices for this reason (#1736);
this was the last reference left in the repository. Switched to
debian:trixie, already the most used Debian image in this scenario file.
Nothing in add-groups.sh is release-specific.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* test(common-utils): use debian:bookworm for add-groups scenario

Follow-up to the previous commit, which moved the scenario off EOL
debian:bullseye to debian:trixie. A maintainer asked for bookworm (12)
in review, so use that instead:

  #1564 (review comment on scenarios.json:139)

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Kaniska <kaniska244@github.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>