refactor: update Bazel build command to include distribution directory

.github/actions/build-kernel/action.yml

@@ -83,7 +83,8 @@ runs:
           --lto=default \
           --defconfig_fragment=//common:arch/arm64/configs/wild_gki.fragment \
           --disk_cache=/home/runner/.cache/bazel \
-          //common:kernel_aarch64
+          --dist_dir=dist
+          //common:kernel_aarch64_dist
 
         tools/bazel info output_base
       fi