chore: fix dependencies
chore: fix dependencies

After running

    dependency-check ./package.json --missing --no-dev
    dependency-check ./package.json --unused --no-dev
    dependency-check ./package.json --missing ./test/*
    dependency-check ./package.json --unused ./test/*

I found out that some dependencies are not quite right. This commit
fixes them.

ipfs/js-ipfs-data-importing,ipfs/js-ipfs-unixfs-engine