tls: update BoringSSL to 1c276938 (4044). (#10416)

Signed-off-by: Piotr Sikora <piotrsikora@google.com>

bazel/repository_locations.bzl

@@ -27,15 +27,15 @@ REPOSITORY_LOCATIONS = dict(
         urls = ["https://github.com/envoyproxy/envoy-build-tools/archive/0a98f4bd8b3eeeaa11a10f6a4fe5c59e7c2e16df.tar.gz"],
     ),
     boringssl = dict(
-        sha256 = "3edf2c38687956f632ba4e0784f999ac2f66feb6c0db8d82b9f8f75d3a9ffae6",
-        strip_prefix = "boringssl-08a0b21059e432352a93c427f1d66bb524ad40ae",
+        sha256 = "a3d4de4f03cb321ef943678d72a045c9a19d26b23d6f4e313f97600c65201a27",
+        strip_prefix = "boringssl-1c2769383f027befac5b75b6cedd25daf3bf4dcf",
         # To update BoringSSL, which tracks Chromium releases:
         # 1. Open https://omahaproxy.appspot.com/ and note <current_version> of linux/stable release.
         # 2. Open https://chromium.googlesource.com/chromium/src/+/refs/tags/<current_version>/DEPS and note <boringssl_revision>.
         # 3. Find a commit in BoringSSL's "master-with-bazel" branch that merges <boringssl_revision>.
         #
-        # chromium-80.0.3987.87
-        urls = ["https://github.com/google/boringssl/archive/08a0b21059e432352a93c427f1d66bb524ad40ae.tar.gz"],
+        # chromium-81.0.4044.69
+        urls = ["https://github.com/google/boringssl/archive/1c2769383f027befac5b75b6cedd25daf3bf4dcf.tar.gz"],
     ),
     boringssl_fips = dict(
         sha256 = "b12ad676ee533824f698741bd127f6fbc82c46344398a6d78d25e62c6c418c73",