chore(deps): Bump smp to 0.18.0 (#21513)

Bump to latest SMP to bring in analysis improvements.

Signed-off-by: Jesse Szwedko <jesse.szwedko@datadoghq.com>

Author: jszwedko

.github/workflows/regression.yml

@@ -225,7 +225,7 @@ jobs:
       - name: Set SMP version
         id: experimental-meta
         run: |
-          export SMP_CRATE_VERSION="0.15.1"
+          export SMP_CRATE_VERSION="0.18.0"
           echo "smp crate version: ${SMP_CRATE_VERSION}"
           echo "SMP_CRATE_VERSION=${SMP_CRATE_VERSION}" >> $GITHUB_OUTPUT