Update build.yml

Author: antonym

.github/workflows/build.yml

@@ -57,7 +57,7 @@ jobs:
       run: |
         apk add git wget docker curl make
         mkdir -p out
-        wget https://github.com/linuxkit/linuxkit/releases/download/v1.0.1/linuxkit-linux-amd64
+        wget https://github.com/linuxkit/linuxkit/releases/download/v1.2.0/linuxkit-linux-amd64
         chmod +x linuxkit-linux-amd64
         ./linuxkit-linux-amd64 build -format kernel+initrd -name core -dir out core.yml
     - name: Generate pre-release