tbd(acpi): temporarily switch to ACPI-enabled artifacts

We created new artifacts with ACPI support. Switch testing infra to
fetch these new artifacts.

Signed-off-by: Babis Chalios <bchalios@amazon.es>

tools/devtool

@@ -526,7 +526,7 @@ ensure_ci_artifacts() {
 
     # Fetch all the artifacts so they are local
     say "Fetching CI artifacts from S3"
-    S3_URL=s3://spec.ccfc.min/firecracker-ci/v1.8/$(uname -m)
+    S3_URL=s3://spec.ccfc.min/firecracker-ci/acpi-mptable/$(uname -m)
     ARTIFACTS=$MICROVM_IMAGES_DIR/$(uname -m)
     if [ ! -d "$ARTIFACTS" ]; then
         mkdir -pv $ARTIFACTS