Group dependabot updates into a smaller number of PRs

[jemrobinson]

✅ Checklist

• You have given your pull request a meaningful title (e.g. Enable foobar integration rather than 515 foobar).
• You are targeting the appropriate branch. If you're not certain which one this is, it should be develop.
• Your branch is up-to-date with the target branch (it probably was when you started, but it may have changed since then).

🚦 Depends on

n/a

⤴️ Summary

Dependabot is currently making one PR per package. This should group them into a smaller number of PRs.

🌂 Related issues

n/a

🔬 Tests

Not tested

[github-actions]

Coverage report

This PR does not seem to contain any modification to coverable code.