fix: 🐛 overwrite _contributor.qmd with > (#207)

# Description

Need to use `>`, not `>>`.

Needs a quick review.

## Checklist

- [x] Ran `just run-all`

Author: lwjohnst86

template/justfile.jinja

@@ -120,7 +120,7 @@ build-readme:
 
 # Generate a Quarto include file with the contributors
 build-contributors:
-  sh ./tools/get-contributors.sh {{ github_repo_spec }} >> docs/includes/_contributors.qmd
+  sh ./tools/get-contributors.sh {{ github_repo_spec }} > docs/includes/_contributors.qmd
 
 # Check for and apply updates from the template
 update-from-template: