Add Dependabot

[lazyguru]

Add Dependabot so it can keep dependencies updated automatically

[kgilles]

Good idea. Let's see if we can keep up with this. At my work dependabot ran us over with PRs that no one cared about 😅

[lazyguru]

There is a way to group updates into single PRs if we need

[kgilles]

There is a way to group updates into single PRs if we need

I like to look at each update one by one. Easier to digest.
But I say this now. We'll see how I feel a month from now.