[ubicloud] Use ubicloud/cache instead of actions/cache in the workflow

We just switched the cache package in the package.json file from
"actions/cache" to "ubicloud/cache".

When we execute `npm run build`, it simply puts the dependency packages
to the dist directory. This is why the change appears less clean.

[ubicloud] Use ubicloud/cache instead of actions/cache in the workflow

We just switched the cache package in the package.json file from
"actions/cache" to "ubicloud/cache".

When we execute `npm run build`, it simply puts the dependency packages
to the dist directory. This is why the change appears less clean.

[ubicloud] Use ubicloud/cache instead of actions/cache in the workflow

We just switched the cache package in the package.json file from
"actions/cache" to "ubicloud/cache".

When we execute `npm run build`, it simply puts the dependency packages
to the dist directory. This is why the change appears less clean.