Update kotlin (#6142)

* Update kotlin to `v2.3.10`

* Don't use the `-0.6.x-compat` version for datetime

* Update kotlinc file contents

* Try to make Renovate ignore the non-semver versions for `kotlinx-datetime`

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Jorge Martín <jorgem@element.io>

.github/renovate.json

@@ -22,7 +22,8 @@
     {
       "versioning": "semver",
       "matchPackageNames": [
-        "/^org.maplibre/"
+        "/^org.maplibre/",
+        "/^org.jetbrains.kotlinx:kotlinx-datetime/"
       ]
     }
   ]