scrypt: depend on Homebrew OpenSSL.

Bumps the homepage to the correct https link, changes the sha1 to
sha256 to match Tarsnap preferred checksum styling, and added the
openssl dependency for the same reasons referenced in
[31978](https://github.com/Homebrew/homebrew/pull/31978).

Also: bumps the download link to https as well.
scrypt: add 1.1.6 bottle.

Closes #31979.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
script: double-quotes and cleanup.