* refactor: move from io/ioutil to io and os packages
The io/ioutil package has been deprecated as of Go 1.16, see
https://golang.org/doc/go1.16#ioutil. This commit replaces the existing
io/ioutil functions with their new definitions in io and os packages.
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
* build: update snapcraft `go-channel` to 1.17
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>