[openwrt/openwrt] CI: build: fix external toolchain use with release tag tests

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/e819523f907480985caf62ff885a16f6e669be07

commit e819523f907480985caf62ff885a16f6e669be07
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Wed Jan 4 19:26:16 2023 +0100

    CI: build: fix external toolchain use with release tag tests
    
    When a new tag for a release is created, the just checkout repo from
    github actions will already have such tag locally created.
    
    This will result in git fetch --tags failing with error rejecting the
    remote tag with (would clobber existing tag).
    
    Add -f option to overwrite any local tags and always fetch them from
    remote.
    
    Fixes: e24a1e6f6d7f ("CI: build: add support for external toolchains from stable branch")
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
    (cherry picked from commit f655923b362e9f2d70672eee9c1fa82550a145a6)
---
 .github/workflows/build.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1c665cb869..ce8f30dd18 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -167,7 +167,7 @@ jobs:
           fi
 
           if [ -n "$major_ver" ]; then
-            git fetch --tags
+            git fetch --tags -f
             latest_tag="$(git tag --sort=-creatordate -l $major_ver* | head -n1)"
             if [ -n "$latest_tag" ]; then
               TOOLCHAIN_PATH=releases/$(echo $latest_tag | sed 's/^v//')