Always pull latest release

.github/workflows/ci.yaml

@@ -36,7 +36,7 @@ jobs:
 
       - name: Get latest version of libvips
         run: |
-          VIPS_LATEST_RELEASE="https://github.com/libvips/libvips/releases/download/v8.13.0/vips-8.13.0.tar.gz"
+          VIPS_LATEST_RELEASE=$(curl -L -s https://api.github.com/repos/libvips/libvips/releases/latest | grep -o -E "https://(.*)/vips-(.*).tar.xz" | head -1)
           echo "VIPS_LATEST_RELEASE=${VIPS_LATEST_RELEASE}" >> $GITHUB_ENV
 
       - name: Cache libvips artifacts
@@ -50,7 +50,7 @@ jobs:
         if: steps.vips-cache.outputs.cache-hit != 'true'
         run: |
           mkdir vips
-          curl -s -L "${VIPS_LATEST_RELEASE}" | tar xz -C ./vips --strip-components=1
+          curl -s -L "${VIPS_LATEST_RELEASE}" | tar xf -C ./vips --strip-components=1
           cd vips
           ./configure
           make