Update version number for release.

MODULE.bazel

diff --git a/MODULE.bazel b/MODULE.bazel
index f21437e..f18b439 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -14,7 +14,7 @@
 
 module(
     name = "fuzztest",
-    version = "head",
+    version = "20250805.0",
 # TODO(lszekeres): Remove and use default name.
     repo_name = "com_google_fuzztest",
 )