Bump bazel test timeouts for some suites

(cherry picked from commit a968862)

Author: HoloRin

deps/rabbit/BUILD.bazel

@@ -647,7 +647,7 @@ suites = [
     ),
     rabbitmq_suite(
         name = "rabbit_fifo_int_SUITE",
-        size = "small",
+        size = "medium",
         runtime_deps = [
             "@aten//:bazel_erlang_lib",
             "@gen_batch_server//:bazel_erlang_lib",

deps/rabbitmq_peer_discovery_etcd/BUILD.bazel

@@ -55,7 +55,7 @@ suites = [
     rabbitmq_integration_suite(
         PACKAGE,
         name = "system_SUITE",
-        size = "small",
+        size = "medium",
     ),
     rabbitmq_suite(
         name = "unit_SUITE",