CI fails when removing packages here

[hannesm]

When we re-add packages to the main opam-repository, the CI in here fails:

  git diff --name-only origin/main packages \
  | sed 's:.*/\(.*\)/opam:\1:' \
  | xargs --max-lines=1 --max-procs=4 opam exec -- opam-ci-check lint -r . --checks=archive-repo --quiet
  shell: /usr/bin/bash -e {0}
  env:
    OPAMCOLOR: always
    OPAMCONFIRMLEVEL: unsafe-yes
    OPAMDOWNLOADJOBS: 4
    OPAMERRLOGLEN: 0
    OPAMEXTERNALSOLVER: builtin-0install
    OPAMPRECISETRACKING: 1
    OPAMRETRIES: 10
    OPAMROOT: /home/runner/.opam
    OPAMSOLVERTIMEOUT: 600
    OPAMYES: 1
    CLICOLOR_FORCE: 1
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dune-action-plugin/dune-action-plugin.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dune-configurator/dune-configurator.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dune-build-info/dune-build-info.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/chrome-trace/chrome-trace.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dune-rpc/dune-rpc.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dune-private-libs/dune-private-libs.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dune-glob/dune-glob.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dune-rpc-lwt/dune-rpc-lwt.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dyn/dyn.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dune/dune.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/dune-site/dune-site.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/ocamlc-loc/ocamlc-loc.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/xdg/xdg.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/stdune/stdune.3.17.2/opam: No such file or directory")
               
opam-ci-check: internal error, uncaught exception:
               Sys_error("/home/runner/work/opam-repository-archive/opam-repository-archive/./packages/ordering/ordering.3.17.2/opam: No such file or directory")
               
Error: Process completed with exit code 123.