Upgrade getrandom to 0.2.8

This project was upgraded with external_updater.
Usage: tools/external_updater/updater.sh update rust/crates/getrandom
For more info, check https://cs.android.com/android/platform/superproject/+/master:tools/external_updater/README.md

Test: TreeHugger
Change-Id: Iec2d2bed229e0a061bb7c35f950d84d03424604d
diff --git a/Android.bp b/Android.bp
index 9f23d16..6686b7e 100644
--- a/Android.bp
+++ b/Android.bp
@@ -42,7 +42,7 @@
     host_supported: true,
     crate_name: "getrandom",
     cargo_env_compat: true,
-    cargo_pkg_version: "0.2.5",
+    cargo_pkg_version: "0.2.8",
     srcs: ["src/lib.rs"],
     test_suites: ["general-tests"],
     auto_gen_config: true,
@@ -61,7 +61,7 @@
     name: "getrandom_test_defaults",
     crate_name: "getrandom",
     cargo_env_compat: true,
-    cargo_pkg_version: "0.2.5",
+    cargo_pkg_version: "0.2.8",
     test_suites: ["general-tests"],
     auto_gen_config: true,
     edition: "2018",
@@ -98,7 +98,7 @@
     host_supported: true,
     crate_name: "getrandom",
     cargo_env_compat: true,
-    cargo_pkg_version: "0.2.5",
+    cargo_pkg_version: "0.2.8",
     srcs: ["src/lib.rs"],
     edition: "2018",
     features: ["std"],