fix(deps): update dependency @opencensus/propagation-stackdriver to v0.0.8 (#354)

Author: renovate[bot]

handwritten/logging/package.json

@@ -54,7 +54,7 @@
     "@google-cloud/paginator": "^0.1.0",
     "@google-cloud/projectify": "^0.3.0",
     "@google-cloud/promisify": "^0.3.0",
-    "@opencensus/propagation-stackdriver": "0.0.7",
+    "@opencensus/propagation-stackdriver": "0.0.8",
     "arrify": "^1.0.1",
     "eventid": "^0.1.2",
     "extend": "^3.0.2",