chore: update to schlump 0.7.0
chore: update to schlump 0.7.0

this enables helpers for templates and frontmatter data for pages

sinnerschrader/website,sinnerschrader/sinnerschrader-website,sinnerschrader/sinnerschrader-website,sinnerschrader/sinnerschrader-website,sinnerschrader/website,sinnerschrader/website