Merge pull request #913 from ascopes/dependabot/maven/main/org.immutables-bom-2.12.1

Author: dependabot[bot]

pom.xml

@@ -91,7 +91,7 @@
     <assertj.version>4.0.0-M1</assertj.version>
     <commons-compress.version>1.28.0</commons-compress.version>
     <errorprone.version>2.45.0</errorprone.version>
-    <immutables.version>2.12.0</immutables.version>
+    <immutables.version>2.12.1</immutables.version>
     <javax-annotation.version>1.3.2</javax-annotation.version>
     <jspecify.version>1.0.0</jspecify.version>
     <json.version>20251224</json.version>