scripts: Always download CH binary

The aarch64 builds are not run in a clean environment so always download
a new version of CH otherwise updates to the version will not be
reflected in the version used by the CI.

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>

Author: rbradford

scripts/fetch_images.sh

@@ -11,11 +11,9 @@ fetch_ch() {
     [ "$CH_ARCH" = "x86_64" ] && CH_NAME="cloud-hypervisor"
     CH_URL="$CH_URL_BASE/$CH_NAME"
 
-    if [ ! -f "$CH_PATH" ]; then
-        wget --quiet $CH_URL -O $CH_PATH
-        chmod +x $CH_PATH
-        sudo setcap cap_net_admin+ep $CH_PATH
-    fi
+    wget --quiet $CH_URL -O $CH_PATH
+    chmod +x $CH_PATH
+    sudo setcap cap_net_admin+ep $CH_PATH
 }
 
 fetch_image() {