just: remove pre-release recipe and use require() instead

justfile

@@ -5,6 +5,13 @@ requirements_file := "requirements.txt"
 the_app := "teilchensammler_cli.main"
 uv_export_options := "--frozen --format requirements.txt --quiet --no-install-project"
 
+uv := require("uv")
+git := require("git")
+fj := require("fj")
+prek := require("prek")
+markdownlint := require("markdownlint-cli2")
+mv := require("mv")
+
 [private]
 default:
   @just --list
@@ -53,12 +60,7 @@ lint:
   uv run twine check --strict dist/*
   prek validate-config prek.toml
 
-pre_release_check: setup
-  test -x `which uv`
-  test -x `which git`
-  test -x `which fj`
-
-release *release_name: pre_release_check
+release *release_name: setup
   #!/usr/bin/env fish
   test -f {{ releasenotes }}; and set -l body "$(cat {{ releasenotes }})"; or begin echo Release notes are missing!; exit 2; end
   set -l tag (uv version --short --output-format text)