feat(actions) add joss pdf compiler

Author: casenave

.github/workflows/draft-pdf.yml

@@ -0,0 +1,23 @@
+name: Draft JOSS PDF
+  push:
+    paths:
+      - docs/joss_paper/**
+      - .github/workflows/draft-pdf.yml
+
+jobs:
+  paper:
+    runs-on: ubuntu-latest
+    name: Paper Draft
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build joss draft PDF
+        uses: openjournals/openjournals-draft-action@master
+        with:
+          journal: joss
+          paper-path: docs/joss_paper/paper.md
+      - name: Upload
+        uses: actions/upload-artifact@v4
+        with:
+          name: paper
+          path: docs/joss_paper/paper.pdf