Bump version for Extensions API

Bump version for extensions API so we can then include the recent
version as a prebuilt.

Bug: 239859841
Test: Sync gradle.
Change-Id: I08a60d19a9f846793b6e461c819806c666fdedce

diff --git a/libraryversions.toml b/libraryversions.toml
index 0b2e353..5c625d5 100644
--- a/libraryversions.toml
+++ b/libraryversions.toml

@@ -135,7 +135,7 @@
 WEAR_WATCHFACE = "1.2.0-alpha02"
 WEBKIT = "1.6.0-alpha02"
 WINDOW = "1.1.0-alpha04"
-WINDOW_EXTENSIONS = "1.1.0-alpha01"
+WINDOW_EXTENSIONS = "1.1.0-alpha02"
 WINDOW_SIDECAR = "1.0.0-rc01"
 WORK = "2.8.0-alpha05"