Update metro to v1.2.1

Author: renovate[bot]

gradle/libs.versions.toml

@@ -29,7 +29,7 @@ mordant = "3.0.2"
 
 uri = "0.0.21"
 
-metro = "1.1.1"
+metro = "1.2.1"
 
 ksp = "2.3.9"
 kotlinpoet = "2.3.0"

sample/simple/gradle/libs.versions.toml

@@ -22,7 +22,7 @@ java-toolchain = "21"
 khonshu = "0.36.1"
 ksp = "2.3.9"
 kotlin = "2.4.0"
-metro = "1.1.1"
+metro = "1.2.1"
 
 [libraries]
 android-desugarjdklibs = { module = "com.android.tools:desugar_jdk_libs", version.ref = "android-desugarjdklibs" }