Handle ubuntu and macos platforms

Author: simonrw

.github/workflows/stress.yml

@@ -36,9 +36,20 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Install dependencies
+      if: matrix.os != ubuntu-latest
       run: |
         brew install cfitsio python3
 
+    - name: Install ubuntu dependencies
+      if: matrix.os == ubuntu-latest
+      run: |
+        sudo apt-get update && sudo apt-get install --no-install-recommends -y \
+          llvm-dev \
+          libcfitsio-dev \
+          pkg-config \
+          libssl-dev \
+          python3
+
     - name: Install toolchain
       uses: dtolnay/rust-toolchain@master
       with: