Install pandoc in the GitHub CI

Author: petrpavlu

.github/workflows/ci.yml

@@ -31,6 +31,8 @@ jobs:
             rustup update ${{ matrix.toolchain }}
             rustup default ${{ matrix.toolchain }}
           fi
+      - name: Install build dependencies
+        run: zypper --non-interactive install pandoc
       - name: Build the project
         run: cargo build
       - name: Run tests