Merge #509 by IndiTheo: Bumped R8 version

https://github.com/bazelbuild/rules_android/issues/507
Closes #509

COPYBARA_INTEGRATE_REVIEW=https://github.com/bazelbuild/rules_android/pull/509 from IndiTheo:bump-r8 f981eed977b8fa331e6f4e8e6a26e8656da441a3
PiperOrigin-RevId: 928600094
Change-Id: If5d3655abc00d8380e3605d368e8a60abbe78201

MODULE.bazel

diff --git a/MODULE.bazel b/MODULE.bazel
index 0afa952..29dfce2 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -100,7 +100,7 @@
         "com.android.tools:desugar_jdk_libs_nio:2.1.5",
         "com.android.tools:desugar_jdk_libs_configuration_nio:2.1.5",
         "com.android.tools:desugar_jdk_libs_configuration:2.1.5",
-        "com.android.tools:r8:8.9.35",
+        "com.android.tools:r8:9.1.31",
         "org.bouncycastle:bcprov-jdk18on:1.77",
         "org.hamcrest:hamcrest-core:2.2",
         "org.robolectric:robolectric:4.14.1",

defs.bzl

diff --git a/defs.bzl b/defs.bzl
index 777dec5..0780190 100644
--- a/defs.bzl
+++ b/defs.bzl
@@ -89,7 +89,7 @@
             "com.android.tools:desugar_jdk_libs_nio:2.1.5",
             "com.android.tools:desugar_jdk_libs_configuration_nio:2.1.5",
             "com.android.tools:desugar_jdk_libs_configuration:2.1.5",
-            "com.android.tools:r8:8.9.35",
+            "com.android.tools:r8:9.1.31",
             "org.bouncycastle:bcprov-jdk18on:1.77",
             "org.hamcrest:hamcrest-core:2.2",
             "org.robolectric:robolectric:4.14.1",