Bump @iobroker/json-config from 7.6.20 to 7.7.0 in /src-admin

Bumps @iobroker/json-config from 7.6.20 to 7.7.0.

---
updated-dependencies:
- dependency-name: "@iobroker/json-config"
  dependency-version: 7.7.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src-admin/package.json

@@ -12,7 +12,7 @@
     },
     "devDependencies": {
         "@iobroker/adapter-react-v5": "7.6.20",
-        "@iobroker/json-config": "7.6.20",
+        "@iobroker/json-config": "7.7.0",
         "@module-federation/runtime": "^0.15.0",
         "@module-federation/vite": "^1.4.1",
         "@mui/icons-material": "^6.4.12",