Meta: Upgrade ESMeta to v0.6.4

Author: jhnaldo

.github/workflows/esmeta-typecheck.yml

@@ -26,7 +26,7 @@ jobs:
           cd "${ESMETA_HOME}"
           git init
           git remote add origin https://github.com/es-meta/esmeta.git
-          git fetch --depth 1 origin 6038a20b263d51410e1b8112157af9b1f413349e ;# v0.6.3
+          git fetch --depth 1 origin 154cd346cfad4bfb485de1c34fc9715748e2d517 ;# v0.6.4
           git checkout FETCH_HEAD
       - name: build esmeta
         run: |