REUSE: attribute the dockcross wrappers to the dockcross project

They are the generated output of dockcross's wrapper template
(imagefiles/dockcross.sh); copyright and MIT license as in dockcross's
LICENSE.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AytmJF9faEiQEVt6eetQS2

Author: claude

CHANGELOG.md

@@ -31,6 +31,8 @@ from version 5.0.0 onward. Pre-fork releases (`1.x`–`4.2.0`) were authored by
   `.github/shared-files.sha256` entry `.github/workflows/publish.yml#<job>` hashes one job (`startgate`,
   `shared-files`, `verify-signing-key`, `check-snapshot`, `check-tag`, and where present
   `verify-signing-key-gradle`, `github-snapshot`, `github-release`).
+- **The dockcross wrappers are attributed to dockcross** in `REUSE.toml` (MIT, its copyright holders):
+  they are the generated output of dockcross's wrapper template, not this project's code.
 - **Unused dockcross wrappers removed**: `dockcross-linux-arm64-lts` (Linux aarch64 builds natively on
   `ubuntu-24.04-arm` with GCC 14) and `dockcross-android-arm` (32-bit Android was never built in CI
   and is not published). With them went the `stdc++fs` link for GCC < 9 in `llama/CMakeLists.txt`:

REUSE.toml

@@ -50,18 +50,17 @@ SPDX-FileCopyrightText = [
 ]
 SPDX-License-Identifier = "MIT"
 
-# Dockcross scripts (no file extension, may not be recognized)
+# The dockcross wrappers are generated, unmodified output of dockcross's own wrapper template
+# (imagefiles/dockcross.sh), printed by `docker run --rm dockcross/<image>:<tag>`; copyright and
+# license as in https://github.com/dockcross/dockcross/blob/master/LICENSE.
 [[annotations]]
 path = [
     ".github/dockcross/dockcross-android-arm64",
     ".github/dockcross/dockcross-android-x86_64",
     ".github/dockcross/dockcross-manylinux2014-x64",
     ".github/dockcross/dockcross-manylinux_2_28-x64",
 ]
-SPDX-FileCopyrightText = [
-    "2023-2025 Konstantin Herud",
-    "2026 Bernard Ladenthin <bernard.ladenthin@gmail.com>",
-]
+SPDX-FileCopyrightText = "2015-2021 Steeve Morin, Rob Burns, Matthew McCormick, Jean-Christophe Fillion-Robin, Bensuperpc"
 SPDX-License-Identifier = "MIT"
 
 # GITHUB/ISSUE_TEMPLATE/config.yml handled by reuse annotate below