chore(renovate): hold Kotlin at the SKIE ceiling (<=2.4.0)

SKIE 0.10.13 (latest) hard-rejects Kotlin > 2.4.0 at configuration
time, killing every CI job — renovate re-opened the 2.4.10 bump (#72)
minutes after v0.1.0 shipped and it fails all checks, exactly like the
merge storm that broke main yesterday. Same pattern as TAKPacket-SDK's
typescript<7 hold: constrain until the upstream ceiling moves, with the
release-notes link in the rule description.

Renovate will auto-close #72. Raise the bound and the SKIE version
together when SKIE ships Kotlin 2.4.10 support.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>

Author: jamesarich

renovate.json

@@ -32,6 +32,11 @@
         "/^org\\.jetbrains\\.kotlin/"
       ]
     },
+    {
+      "description": "Hold Kotlin at the SKIE ceiling. SKIE 0.10.13 (latest) hard-rejects Kotlin > 2.4.0 at configuration time, killing every job (v0.1.0 prep: the 2.4.10 bump broke all of main). Raise this bound and the SKIE version together when SKIE releases support — check https://github.com/touchlab/SKIE/releases.",
+      "matchPackageNames": ["/^org\\.jetbrains\\.kotlin[.:]/"],
+      "allowedVersions": "<=2.4.0"
+    },
     {
       "groupName": "ktor",
       "matchPackageNames": [