Upgrade to dexmaker 2.28.3

This version is propertly signed.

Test: ./gradlew assembleAndroidTest
Change-Id: I49cb4f33f6def15e7060c307283f9735d94a0332
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index a707641..6d128fb 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -25,7 +25,7 @@
 autoValue = "1.6.3"
 cmake = "3.22.1"
 dagger = "2.42"
-dexmaker = "2.25.0"
+dexmaker = "2.28.3"
 espresso = "3.5.0-alpha06"
 guavaJre = "31.1-jre"
 hilt = "2.42"