chore(deps): bump @t3-oss/env-core from 0.11.1 to 0.13.8

Bumps [@t3-oss/env-core](https://github.com/t3-oss/t3-env/tree/HEAD/packages/core) from 0.11.1 to 0.13.8.
- [Release notes](https://github.com/t3-oss/t3-env/releases)
- [Changelog](https://github.com/t3-oss/t3-env/blob/main/packages/core/CHANGELOG.md)
- [Commits](https://github.com/t3-oss/t3-env/commits/@t3-oss/[email protected]/packages/core)

---
updated-dependencies:
- dependency-name: "@t3-oss/env-core"
  dependency-version: 0.13.8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -31,7 +31,7 @@
         "@discordjs/rest": "^2.6.0",
         "@hapi/hapi": "^21.4.3",
         "@prisma/client": "^6.18.0",
-        "@t3-oss/env-core": "^0.11.1",
+        "@t3-oss/env-core": "^0.13.8",
         "cross-env": "^7.0.3",
         "discord-api-types": "^0.37.120",
         "discord.js": "^14.23.2",