T8943: scripts/package-build: migrate broken commit_id refs after 1c rename

PR #1204 ("ci: T8943: migrate branch-name refs current->rolling (rollout
1c)") covered .github/workflows/ only and missed seven commit_id values
in scripts/package-build/ that referenced the pre-1c default-branch
names of vyos-owned repos.

The GitHub branch-rename redirect works for the REST API and web UI,
not for git refs in a fresh clone — scripts/package-build/build.py
clones the upstream and `git checkout <commit_id>`, which fails after
the source repo was renamed.

Updated:
  libnss-mapuser/package.toml      current -> rolling
  libpam-radius-auth/package.toml  current -> rolling
  vpp/package.toml (vyos-vpp-patches)  current -> rolling
  vyos-1x/package.toml             current -> rolling
  tacacs/package.toml (libtacplus-map)  master  -> rolling
  tacacs/package.toml (libpam-tacplus)  master  -> rolling
  tacacs/package.toml (libnss-tacplus)  master  -> rolling

Verified post-rename defaults via `gh api repos/vyos/<r> --jq
.default_branch` for all seven; verified the failure mode via a fresh
`git clone https://github.com/vyos/vyos-1x.git` + `git checkout current`
which errors with "pathspec 'current' did not match any file(s) known
to git".

LTS branches (sagitta/circinus/equuleus) were scanned and require no
changes — only third-party `evgeny-gridasov/openvpn-otp` master appears
there, unaffected by 1c.

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