Add Debian CRAN checks using official Docker container to GitHub Actions

.github/workflows/debian-cran-check.yaml

@@ -0,0 +1,32 @@
+# CRAN Debian incoming checks
+# Uses the official Debian-based CRAN check environment
+name: Debian CRAN Check
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+jobs:
+  check-cran-debian:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    container:
+      image: ghcr.io/r-devel/rcheckserver/debian:latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install package dependencies
+        run: |
+          R -e 'install.packages("remotes", repos = "https://cloud.r-project.org")'
+          R -e 'remotes::install_deps(dependencies = TRUE)'
+
+      - name: Run R CMD check with --as-cran
+        run: |
+          cd ..
+          R CMD build --no-manual ${GITHUB_REPOSITORY#*/}
+          R CMD check --as-cran ${GITHUB_REPOSITORY#*/}*.tar.gz