chore(deps): update boringssl digest to 4a0dbf4

Author: renovate[bot]

workspace_setup.bzl

@@ -57,7 +57,7 @@ def hedron_make_cc_https_easy():
     maybe(
         http_archive,
         name = "boringssl",
-        url = "https://github.com/hedronvision/boringssl/archive/8436f9ae16e28ce580d6c16d91758b42da1021fe.tar.gz",
-        sha256 = "fafd96960d62c6b5359b8a643005006ba1cb321d09e360551ecaeae7bb802f15",
-        strip_prefix = "boringssl-8436f9ae16e28ce580d6c16d91758b42da1021fe",
+        url = "https://github.com/hedronvision/boringssl/archive/4a0dbf4fc60c8809b488d3f3d89ee76c2563adab.tar.gz",
+        sha256 = "6c7a48ad5daecfcf37d1ab14f4511c704eda3ff7904d0a31124c711c0752dde6",
+        strip_prefix = "boringssl-4a0dbf4fc60c8809b488d3f3d89ee76c2563adab",
     )