fix: packages/ipfs-core/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-TMP-11501554

Author: snyk-bot

packages/ipfs-core/package.json

@@ -156,7 +156,7 @@
     "blockstore-datastore-adapter": "^5.0.0",
     "delay": "^5.0.0",
     "go-ipfs": "^0.12.0",
-    "interface-blockstore-tests": "^4.0.0",
+    "interface-blockstore-tests": "^6.1.2",
     "interface-ipfs-core": "^0.158.1",
     "ipfsd-ctl": "^13.0.0",
     "iso-url": "^1.0.0",