Add static_assertions crate

Test: build.py
Bug: 298705967
Change-Id: I268467e00a0aff2ef38f25f5e8d22f6b9d48ab0a
diff --git a/default.xml b/default.xml
index 69fc8a7..5f6d6df 100644
--- a/default.xml
+++ b/default.xml
@@ -156,6 +156,7 @@
   <project path="external/rust/crates/serde" name="platform/external/rust/crates/serde" groups="trusty" />
   <project path="external/rust/crates/serde_derive" name="platform/external/rust/crates/serde_derive" groups="trusty" />
   <project path="external/rust/crates/spki" name="platform/external/rust/crates/spki" groups="trusty" />
+  <project path="external/rust/crates/static_assertions" name="platform/external/rust/crates/static_assertions" groups="trusty" />
   <project path="external/rust/crates/syn" name="platform/external/rust/crates/syn" groups="trusty" />
   <project path="external/rust/crates/synstructure" name="platform/external/rust/crates/synstructure" groups="trusty" />
   <project path="external/rust/crates/thiserror" name="platform/external/rust/crates/thiserror" groups="trusty" />