[neon/backports-noble/opencv-noble/Neon/release] debian/upstream: Revert "Revert "fake signing-key""

[Carlos De Maine]

Git commit 12bdedd8e95dbc603ee5b668da1881de576a56e2 by Carlos De Maine.
Committed on 24/03/2025 at 22:12.
Pushed by carlosdem into branch 'Neon/release'.

Revert "Revert "fake signing-key""

This reverts commit b5b29e80a2b1744293587e7443dc746967f941e1

A  +0    -0    debian/upstream/signing-key.asc

https://invent.kde.org/neon/backports-noble/opencv-noble/-/commit/12bdedd8e95dbc603ee5b668da1881de576a56e2

diff --git a/debian/upstream/signing-key.asc b/debian/upstream/signing-key.asc
new file mode 100644
index 0000000000..e69de29bb2