Pin manifest of androidx-concurrent-release

Change-Id: I20089aa5aac6c65e1ab56caf8ce424227bedaf1d
diff --git a/default.xml b/default.xml
index 61b4437..39040ec 100644
--- a/default.xml
+++ b/default.xml
@@ -2,7 +2,7 @@
   <remote fetch=".." name="aosp" review="https://android-review.googlesource.com/" />
   <default remote="aosp" revision="androidx-concurrent-release" sync-j="8" />
   
-  <project name="platform/build" path="build/make" revision="62385b90f1d3609d0c16057a015eda170ecb9053" />
+  <project name="platform/build" path="build/make" revision="a2960bfeabca0fe3702e359165ca92ba18a951bb" />
   
   
   <project clone-depth="1" groups="pdk" name="platform/external/noto-fonts" path="external/noto-fonts" revision="cece02f0a698a156b28ead1f7811401c82fb2ae4" />