Fix bcr test path (#57)

.bcr/presubmit.yml

diff --git a/.bcr/presubmit.yml b/.bcr/presubmit.yml
index a3de324..e890881 100644
--- a/.bcr/presubmit.yml
+++ b/.bcr/presubmit.yml
@@ -18,4 +18,4 @@
       name: "Run test module"
       platform: ${{ platform }}
       test_targets:
-        - '//test/...'
+        - '//tests/...'