build: 🔨 add bandit security checks to justfile (#58)

## Description

Updated from Sprout.

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Doesn't need a review.

Author: lwjohnst86

justfile

@@ -2,7 +2,7 @@
     just --list --unsorted
 
 # Run all build-related recipes in the justfile
-run-all: install-deps format-python check-python test-python check-commits build-website
+run-all: install-deps format-python check-python test-python check-security check-commits build-website
 
 # Install Python package dependencies
 install-deps:
@@ -60,3 +60,7 @@ check-commits:
   else
     echo "Can't either be on ${branch_name} or have more than ${number_of_commits}."
   fi
+
+# Run basic security checks on the package
+check-security:
+  uv run bandit -r src/