output from libheif's info in a separate step

Author: bigcat88

.github/workflows/test-src-build-macos.yml

@@ -40,5 +40,8 @@ jobs:
       - name: Installing Pillow-Heif
         run: python3 -m pip -v install ".[dev]"
 
+      - name: LibHeif info
+        run: python3 -c "import pillow_heif; print(pillow_heif.libheif_info())"
+
       - name: Perform tests
-        run: python3 -m pytest -s
+        run: python3 -m pytest -rs

.github/workflows/test-src-build-windows.yml

@@ -63,5 +63,8 @@ jobs:
           cp ${{ env.MSYS2_PREFIX }}/bin/libgcc_s_seh-1.dll $site_packages/
           cp ${{ env.MSYS2_PREFIX }}/bin/libstdc++-6.dll $site_packages/
 
+      - name: LibHeif info
+        run: python -c "import pillow_heif; print(pillow_heif.libheif_info())"
+
       - name: Perform tests
-        run: python -m pytest -s
+        run: python -m pytest -rs