chore: update interface-datastore to version 0.8.0 (#2549)

Author: greenkeeper[bot]

package.json

@@ -96,7 +96,7 @@
     "hapi-pino": "^6.1.0",
     "hashlru": "^2.3.0",
     "human-to-milliseconds": "^2.0.0",
-    "interface-datastore": "~0.7.0",
+    "interface-datastore": "~0.8.0",
     "ipfs-bitswap": "^0.26.0",
     "ipfs-block": "~0.8.1",
     "ipfs-block-service": "~0.16.0",