ci: disable Fedora OpenH264 repo in cross build

.gitea/workflows/build-windows-cross-linux.yml

@@ -25,6 +25,9 @@ jobs:
           sed -e 's|^metalink=|#metalink=|g' \
               -e 's|^#baseurl=http://download.example/pub/fedora/linux|baseurl=https://mirrors.tuna.tsinghua.edu.cn/fedora|g' \
               -i /etc/yum.repos.d/fedora*.repo
+          if [ -f /etc/yum.repos.d/fedora-cisco-openh264.repo ]; then
+            sed -i 's|^enabled=1|enabled=0|g' /etc/yum.repos.d/fedora-cisco-openh264.repo
+          fi
           dnf makecache --refresh -y
 
       - name: Checkout