Update retrofit monorepo to v2.12.0 (#330)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -15,7 +15,7 @@ androidXStartup = "1.2.0"
 androidxPalette = "1.0.0"
 bindables = "1.2.0"
 hilt = "2.56.2"
-retrofit = "2.11.0"
+retrofit = "2.12.0"
 okHttp = "4.12.0"
 sandwich = "2.1.1"
 moshi = "1.15.2"