build: update rules_foreign_cc (#11520)

The aim is to fix one of the issues encountered while cross-compiling
Envoy (see #11446 and bazel-contrib/rules_foreign_cc#407).

Signed-off-by: Ilya Dmitrichenko <errordeveloper@gmail.com>

bazel/repository_locations.bzl

@@ -368,10 +368,10 @@ DEPENDENCY_REPOSITORIES = dict(
         use_category = ["build"],
     ),
     rules_foreign_cc = dict(
-        sha256 = "3184c244b32e65637a74213fc448964b687390eeeca42a36286f874c046bba15",
-        strip_prefix = "rules_foreign_cc-7bc4be735b0560289f6b86ab6136ee25d20b65b7",
-        # 2019-09-26
-        urls = ["https://github.com/bazelbuild/rules_foreign_cc/archive/7bc4be735b0560289f6b86ab6136ee25d20b65b7.tar.gz"],
+        sha256 = "7ca49ac5b0bc8f5a2c9a7e87b7f86aca604bda197259c9b96f8b7f0a4f38b57b",
+        strip_prefix = "rules_foreign_cc-f54b7ae56dcf1b81bcafed3a08d58fc08ac095a7",
+        # 2020-06-09
+        urls = ["https://github.com/bazelbuild/rules_foreign_cc/archive/f54b7ae56dcf1b81bcafed3a08d58fc08ac095a7.tar.gz"],
         use_category = ["build"],
     ),
     rules_python = dict(