chore(deps): update ghcr.io/astral-sh/uv:latest docker digest to 78a7ff9 (#237)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Dockerfile

@@ -16,7 +16,7 @@ FROM ${FROM}
 RUN --mount=type=bind,source=bindep.txt,target=/bindep.txt \
     --mount=type=bind,from=ghcr.io/vexxhost/build-utils:latest@sha256:79d7579c2300391cc9cdd9ca17b9031750a748fb84a87ebb1f1a920e1fcb4740,source=/bin,target=/build \
     /build/install-bindep-packages
-COPY --from=ghcr.io/astral-sh/uv:latest@sha256:538e0b39736e7feae937a65983e49d2ab75e1559d35041f9878b7b7e51de91e4 /uv /uvx /bin/
+COPY --from=ghcr.io/astral-sh/uv:latest@sha256:78a7ff97cd27b7124a5f3c2aefe146170793c56a1e03321dd31a289f6d82a04f /uv /uvx /bin/
 COPY --from=upper-constraints --link /upper-constraints.txt /upper-constraints.txt
 RUN <<EOF bash -xe
 uv venv --system-site-packages /var/lib/openstack