fix: update metadata headers for asset uploads in build workflows

Author: liuruibin

.github/workflows/build-dev.yml

@@ -19,4 +19,4 @@ jobs:
     - name: Upload Assets to OSS
       run: |
         ossutil sync tools oss://apps-fit2cloud-com/dev/maxkb --update --delete --force
-        ossutil set-meta oss://apps-fit2cloud-com/dev/maxkb -r --include "*.mk" --meta Content-Disposition:attachment
+        ossutil set-meta oss://apps-fit2cloud-com/dev/maxkb -r --include "*.mk" --headers "Content-Disposition:attachment" --headers "Content-Type:application/octet-stream"

.github/workflows/build.yml

@@ -19,4 +19,4 @@ jobs:
     - name: Upload Assets to OSS
       run: |
         ossutil sync tools oss://apps-fit2cloud-com/stable/maxkb --update --delete --force
-        ossutil set-meta oss://apps-fit2cloud-com/stable/maxkb -r --include "*.mk" --meta Content-Disposition:attachment
+        ossutil set-meta oss://apps-fit2cloud-com/stable/maxkb -r --include "*.mk" --headers "Content-Disposition:attachment" --headers "Content-Type:application/octet-stream"