build: add explicit bazel rule for cc_library (#1346)

src/BUILD.bazel

@@ -1,4 +1,5 @@
 load("@bazel_skylib//lib:selects.bzl", "selects")
+load("@rules_cc//cc:defs.bzl", "cc_library")
 load("//bazel:copts.bzl", "COPTS")
 
 package(default_visibility = ["//:__subpackages__"])