Try adding easy directory

man this is way harder than it needs to be

.github/workflows/build.yml

@@ -15,12 +15,12 @@ jobs:
       - name: Typst
         uses: lvignoli/typst-action@main
         with:
-          source_file: main.typ
+          source_file: easy/main.typ
       - name: Upload PDF file
         uses: actions/upload-artifact@v3
         with:
           name: PDF
-          path: main.pdf
+          path: easy/main.pdf
       - name: Get current date
         id: date
         run: echo "DATE=$(date +%Y-%m-%d-%H:%M)" >> $GITHUB_ENV
@@ -29,4 +29,4 @@ jobs:
         if: github.ref_type == 'tag'
         with:
           name: "${{ github.ref_name }} — ${{ env.DATE }}"
-          files: main.pdf
+          files: easy/main.pdf