grub: change grub snapshot URL to point to new mirrors

- according to https://savannah.gnu.org/news/?id=10777 new mirrors should be used

Signed-off-by: Mikhail Malyshev <[email protected]>

Author: rucoder

pkg/grub/Dockerfile

@@ -53,7 +53,7 @@ ENV GRUB_PLATFORM=efi
 # hadolint ignore=DL3006
 FROM grub-build-${TARGETARCH} AS grub-build
 
-ENV GRUB_REPO=https://git.savannah.gnu.org/cgit/grub.git
+ENV GRUB_REPO=https://cgit.git.savannah.gnu.org/cgit/grub.git
 
 COPY patches /patches
 COPY patches-2.06  /patches-2.06