Add always passing test

Since remote-gerrit-account-cache lib does not have tests defined,
add always passing test so that 'bazel test //...' won't fail.

Change-Id: I4b113342dcc73e49cd61299f8fff22f4f876576d
diff --git a/tools/bzl/BUILD b/tools/bzl/BUILD
index f40498e..c117c67 100644
--- a/tools/bzl/BUILD
+++ b/tools/bzl/BUILD
@@ -1 +1,5 @@
-# Empty BUILD file, needed by Bazel.
+sh_test(
+    name = "always_pass_test",
+    srcs = ["always_pass_test.sh"],
+)
+
diff --git a/tools/bzl/always_pass_test.sh b/tools/bzl/always_pass_test.sh
new file mode 100755
index 0000000..e172ff6
--- /dev/null
+++ b/tools/bzl/always_pass_test.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+#
+# Copyright (C) 2023 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This is a dummy test to put on the command line to avoid no tests
+# found outcome in `bazel test` command. See this upstream issue:
+# https://github.com/bazelbuild/bazel/issues/11465
+
+exit 0
+