- ensure expat, zlib and bz2 are available on ubuntu

Author: fbergmann

.github/workflows/test-build.yml

@@ -30,6 +30,10 @@ jobs:
         with:
           submodules: recursive
 
+      - name: Install Ubuntu dependencies
+        if: matrix.os == 'ubuntu-latest'
+        run: sudo apt-get update && sudo apt-get install -y zlib1g-dev libbz2-dev libexpat1-dev
+
       - name: Build
         run: cargo build