Change the Bazel module version to 20260219.0.

MODULE.bazel

diff --git a/MODULE.bazel b/MODULE.bazel
index 7e7fa33..5b04188 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -14,7 +14,7 @@
 
 module(
     name = "fuzztest",
-    version = "head",
+    version = "20260219.0",
     # TODO(lszekeres): Remove and use default name.
     repo_name = "com_google_fuzztest",
 )