docker: apt manual test 2

.gitea/workflows/build.yml

@@ -21,6 +21,7 @@ jobs:
       - name: Build Docker image
         run : |
           apt-get install ca-certificates curl gnupg
+          mkdir -p /etc/apt/keyrings
           curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
           echo "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
           apt-get update