chore(deps): bump fast-uri to 3.1.7 in the electron lockfile

Dependabot alerts #196–#199 — four HIGH advisories on fast-uri
(GHSA-jqff-g426-hqxp, GHSA-fph4-wmhf-6fwf, GHSA-f65p-4m7j-42xc,
GHSA-5jgf-p345-68v8), all patched in 3.1.6.

The root package-lock.json was already on a patched fast-uri (3.1.7) — those
alerts close on their own with the next scan. `electron/package-lock.json` is a
second lockfile and was still pinning 3.1.5, which is what these four alerts are
actually reporting.

Transitive, one copy, pulled by ajv (`^3.0.1`), so a package-lock-only update
lifts it without touching any manifest. The diff is three lines: version,
resolved and integrity for that single entry.

check:lockfile and check:tracked-artifacts pass.

Not fixed here: extract-zip (#191, HIGH, <= 2.0.1) has no published patch. It
comes in through @openai/codex-security and is dev-scope; it needs either an
upstream release or a decision to drop/replace the dependency, neither of which
belongs in a lockfile bump.

electron/package-lock.json

@@ -1575,9 +1575,9 @@
       "license": "MIT"
     },
     "node_modules/fast-uri": {
-      "version": "3.1.5",
-      "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.5.tgz",
-      "integrity": "sha512-gHwA1O9LDIcKunMKhObS/HimwtehO1nPUECKAu5TpKgaO19fcWEl4bliWe1jWxVFvIXztJjjQ4L8XQ1EU9f7Jw==",
+      "version": "3.1.7",
+      "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.7.tgz",
+      "integrity": "sha512-dOvZVzjdZdz7phd9v6jCbwxrBW3fK6n8Rc0CtdmM4bumzMnxywBYhuph6J819RRw/ku+rLbelwfMunktuzVVHg==",
       "dev": true,
       "funding": [
         {