ci(release): use last-release-git-tag as a workaround

package.json

@@ -48,6 +48,7 @@
   },
   "devDependencies": {
     "@semantic-release/github": "^1.0.0",
+    "@semantic-release/last-release-git-tag": "^1.0.0",
     "@types/mocha": "^2.2.42",
     "@types/mz": "^0.0.31",
     "@types/node": "^8.0.24",
@@ -76,7 +77,7 @@
       "semantic-release-vsce",
       "@semantic-release/github"
     ],
-    "getLastRelease": "semantic-release-vsce",
+    "getLastRelease": "@semantic-release/last-release-git-tag",
     "publish": [
       {
         "path": "semantic-release-vsce",