CI: use GNU mirror for grub (and switch to HTTPS)

GNU announced they activated mirrors for git servers[1] in May this
year.

The main git server keeps being very unreliable and switching to those
mirrors seems to improve reliability (albeit somewhat slow).

Yes, the URL in this patch has nothing in common with the URL in the
linked mail, it was extracted from the Clone section in the mirrored
cgit page[2].

While at it, switch to the HTTPS clone which is "more secure" than git
protocol.

[1] https://lists.gnu.org/archive/html/savannah-users/2025-05/msg00002.html
[2] https://cgit.git.savannah.gnu.org/cgit/grub.git/

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>

diff --git a/tools/docker/Dockerfile b/tools/docker/Dockerfile
index 630b7f0e14160affe638d58d20256f2be17553bf..402901c2d8231d93372a000d4595bc66ce6c9985 100644 (file)
--- a/tools/docker/Dockerfile
+++ b/tools/docker/Dockerfile
@@ -148,7 +148,7 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
        zip
 
 # Build GRUB UEFI targets for ARM & RISC-V, 32-bit and 64-bit
-RUN git clone git://git.savannah.gnu.org/grub.git /tmp/grub && \
+RUN git clone https://https.git.savannah.gnu.org/git/grub.git /tmp/grub && \
        cd /tmp/grub && \
        git checkout grub-2.12 && \
        git config --global user.name "GitLab CI Runner" && \