Add JOSS paper and associated GitHub workflow (#876)

---------

Co-authored-by: Chahan M. Kropf <chahan.kropf@usys.ethz.ch>
Co-authored-by: Schmid  Timo <timschmi@ethz.ch>

Author: 3 people

.github/workflows/ci.yml

@@ -68,3 +68,24 @@ jobs:
         with:
           name: coverage-report-unittests-py${{ matrix.python-version }}
           path: coverage/
+
+  joss-paper:
+    runs-on: ubuntu-latest
+    name: Paper Draft
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build draft PDF
+        uses: openjournals/openjournals-draft-action@master
+        with:
+          journal: joss
+          # This should be the path to the paper within your repo.
+          paper-path: doc/joss/calibration-module/paper.md
+      - name: Upload
+        uses: actions/upload-artifact@v1
+        with:
+          name: paper
+          # This is the output path where Pandoc will write the compiled
+          # PDF. Note, this should be the same directory as the input
+          # paper.md
+          path: doc/joss/calibration-module/paper.pdf