Update Kani version to 0.27.0 (#35)

Author: adpaco-aws

action.yml

@@ -36,7 +36,7 @@ runs:
     - name: Install Kani
       shell: bash
       run: |
-        export KANI_VERSION="0.26.0";
+        export KANI_VERSION="0.27.0";
         cargo install --version $KANI_VERSION --locked kani-verifier;
         cargo-kani setup;