Update squareup.moshi to v1.15.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -73,7 +73,7 @@ rxjava2-core = "2.2.21"
 squareup-curtains = "1.2.4"
 squareup-cycler = "0.1.9"
 squareup-leakcanary = "2.11"
-squareup-moshi = "1.13.0"
+squareup-moshi = "1.15.0"
 squareup-okhttp = "4.9.1"
 squareup-okio = "3.0.0"
 squareup-radiography = "2.4.1"