Move to @pezkuwi/dev 0.86 (eslint 10 toolchain)

- @pezkuwi/dev, dev-test, dev-ts ^0.86.2
- addrcheck.spec: optional call instead of a guard expression
  (@typescript-eslint/prefer-optional-chain)
- checkRepoMeta: drop the initial value every path overwrites
  (no-useless-assignment)
- ipfsUpload: drop a disable directive for a rule the toolchain no
  longer reports

package.json

@@ -41,7 +41,7 @@
     "dnslink-cloudflare": "^3.0.0"
   },
   "devDependencies": {
-    "@pezkuwi/dev": "^0.85.2",
+    "@pezkuwi/dev": "^0.86.2",
     "@types/node": "^22.10.5"
   },
   "resolutions": {