fix(deps): update dependency @opencensus/propagation-stackdriver to v0.0.13 (#489)

Author: renovate[bot]

package.json

@@ -57,7 +57,7 @@
     "@google-cloud/paginator": "^1.0.0",
     "@google-cloud/projectify": "^1.0.0",
     "@google-cloud/promisify": "^1.0.0",
-    "@opencensus/propagation-stackdriver": "0.0.12",
+    "@opencensus/propagation-stackdriver": "0.0.13",
     "arrify": "^2.0.0",
     "eventid": "^0.1.2",
     "extend": "^3.0.2",