Merge pull request #7829 from rabbitmq/mergify/bp/v3.12.x/pr-7828

Bazel build: Cowlib does not have a .app.src (backport #7828)

Author: michaelklishin

bazel/BUILD.cowlib

@@ -100,7 +100,6 @@ filegroup(
         "src/cow_uri.erl",
         "src/cow_uri_template.erl",
         "src/cow_ws.erl",
-        "src/cowlib.app.src",
     ],
 )