git-artifacts: accommodate for split mingw-w64-git package

This corresponds to
git-for-windows/git-for-windows-automation@aa81699
(git-artifacts: prepare for the big split of mingw-w64-git, 2025-11-19).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

.github/workflows/git-artifacts.yml

@@ -180,8 +180,8 @@ jobs:
             --version=$(cat pkg-${{env.ARCH_NAME}}/ver) \
             -o artifacts \
             --${{matrix.artifact}} \
-            --pkg=pkg-${{env.ARCH_NAME}}/mingw-w64-${{env.ARCH_NAME}}-git-[0-9]*.tar.xz \
-            --pkg=pkg-${{env.ARCH_NAME}}/mingw-w64-${{env.ARCH_NAME}}-git-doc-html-[0-9]*.tar.xz
+            $(ls pkg-$ARCH_NAME/$MINGW_PACKAGE_PREFIX-*.pkg.tar.* |
+              sed '/\.sig$/d;/archimport/d;/cvs/d;/p4/d;/gitweb/d;/doc-man/d;s/^/--pkg=/')
       - name: Copy package-versions and pdbs
         if: matrix.artifact == 'installer'
         shell: bash