Update all dependencies to v2.12.1 (#317)

| datasource | package                          | from   | to     |
| ---------- | -------------------------------- | ------ | ------ |
| maven      | org.immutables:value-annotations | 2.12.0 | 2.12.1 |
| maven      | org.immutables:builder           | 2.12.0 | 2.12.1 |
| maven      | org.immutables:value             | 2.12.0 | 2.12.1 |

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

libs.versions.toml

@@ -3,7 +3,7 @@ jdk = "21"
 kotlin = "2.3.0"
 moshix = "0.34.1"
 http4k = "6.25.1.0"
-immutables = "2.12.0"
+immutables = "2.12.1"
 arrow = "2.2.1.1"
 graal = "25.0.1"
 java-vavr = "0.11.0"