Merge pull request #837 from rolandtritsch/patch-14

Add another solution

docs/2024/puzzles/day12.md

@@ -381,6 +381,7 @@ def part2(input: String): Int = {
 - [Solution](https://github.com/AlexMckey/AoC2024_Scala/blob/master/src/year2024/day12.scala) by [Alex Mc'key](https://github.com/AlexMckey)
 - [Solution](https://github.com/jportway/advent2024/blob/master/src/main/scala/Day12.scala) by [Joshua Portway](https://github.com/jportway)
 - [Solution](https://github.com/AvaPL/Advent-of-Code-2024/tree/main/src/main/scala/day12) by [Paweł Cembaluk](https://github.com/AvaPL)
+- [Solution](https://github.com/rolandtritsch/scala3-aoc-2024/blob/trunk/main/src/aoc2024/Day12.scala) by [Roland Tritsch](https://github.com/rolandtritsch)
 
 Share your solution to the Scala community by editing this page.
 You can even write the whole article! [See here for the expected format](https://github.com/scalacenter/scala-advent-of-code/discussions/424)