deps: bump idb from 7.1.1 to 8.0.0 (#281)

Bumps [idb](https://github.com/jakearchibald/idb) from 7.1.1 to 8.0.0.
- [Changelog](https://github.com/jakearchibald/idb/blob/main/CHANGELOG.md)
- [Commits](jakearchibald/idb@v7.1.1...v8.0.0)

---
updated-dependencies:
- dependency-name: idb
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

packages/blockstore-idb/package.json

@@ -139,7 +139,7 @@
   },
   "dependencies": {
     "blockstore-core": "^4.0.0",
-    "idb": "^7.1.1",
+    "idb": "^8.0.0",
     "interface-blockstore": "^5.0.0",
     "interface-store": "^5.0.0",
     "multiformats": "^13.0.0"

packages/datastore-idb/package.json

@@ -139,7 +139,7 @@
     "dep-check": "aegir dep-check"
   },
   "dependencies": {
-    "idb": "^7.1.1",
+    "idb": "^8.0.0",
     "interface-datastore": "^8.0.0",
     "it-filter": "^3.0.0",
     "it-sort": "^3.0.1"