chore(deps): update boringssl digest to 768311e

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/768311e55e18fda95d51cf65dbf45383a033da00.tar.gz",
+        sha256 = "e7861ea74a2b16eb47fc30f18ee10a9b27b387cc5d2980d15bd5dde82c531920",
+        strip_prefix = "boringssl-768311e55e18fda95d51cf65dbf45383a033da00",
     )