[openwrt/openwrt] CI: kernel: Use downloads.cdn.openwrt.org

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/ae63723f0ad5392378d06b29cb800266c3ed6858

commit ae63723f0ad5392378d06b29cb800266c3ed6858
Author: Hauke Mehrtens <hauke at hauke-m.de>
AuthorDate: Sun Aug 7 18:21:44 2022 +0200

    CI: kernel: Use downloads.cdn.openwrt.org
    
    Use downloads.cdn.openwrt.org to download the toolchain. This should
    reduce the load on the servers.
    
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
    (cherry picked from commit 7b4daf00766620faac8212b46259064ca6e2c716)
---
 .github/workflows/kernel.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/kernel.yml b/.github/workflows/kernel.yml
index bffa1f04b8..108edf2460 100644
--- a/.github/workflows/kernel.yml
+++ b/.github/workflows/kernel.yml
@@ -78,7 +78,7 @@ jobs:
       - name: Parse toolchain file
         working-directory: openwrt
         run: |
-          TOOLCHAIN_FILE=$(curl "https://downloads.openwrt.org/snapshots/targets/${{ env.TARGET }}/${{ env.SUBTARGET }}/sha256sums" \
+          TOOLCHAIN_FILE=$(curl "https://downloads.cdn.openwrt.org/snapshots/targets/${{ env.TARGET }}/${{ env.SUBTARGET }}/sha256sums" \
             | sed -n -e 's/.*\(openwrt-toolchain.*\).tar.xz/\1/p')
 
           echo "TOOLCHAIN_FILE=$TOOLCHAIN_FILE" >> "$GITHUB_ENV"
@@ -87,7 +87,7 @@ jobs:
         shell: su buildbot -c "sh -e {0}"
         working-directory: openwrt
         run: |
-          wget -O - https://downloads.openwrt.org/snapshots/targets/${{ env.TARGET }}/${{ env.SUBTARGET }}/${TOOLCHAIN_FILE}.tar.xz \
+          wget -O - https://downloads.cdn.openwrt.org/snapshots/targets/${{ env.TARGET }}/${{ env.SUBTARGET }}/${TOOLCHAIN_FILE}.tar.xz \
             | tar --xz -xf -
 
       - name: Configure external toolchain