chore(deps): update com_github_nelhage_rules_boost digest to a0643ef

Author: renovate-bot

pubsub-open-telemetry/WORKSPACE.bazel

@@ -55,9 +55,9 @@ opentelemetry_cpp_deps()
 # Boost
 http_archive(
     name = "com_github_nelhage_rules_boost",
-    sha256 = "085aadb6cd1323740810efcde29e99838286f44e0ab060af6e2a645380316cd6",
-    strip_prefix = "rules_boost-504e4dbc8c480fac5da33035490bc2ccc59db749",
-    url = "https://github.com/nelhage/rules_boost/archive/504e4dbc8c480fac5da33035490bc2ccc59db749.tar.gz",
+    sha256 = "42ba364a384ef74fc94aae8aa160b3affb5662d30e4989118c98f4273a405d44",
+    strip_prefix = "rules_boost-a0643ef5ea1f939da59c42a6a5f21d1c0ffcff4f",
+    url = "https://github.com/nelhage/rules_boost/archive/a0643ef5ea1f939da59c42a6a5f21d1c0ffcff4f.tar.gz",
 )
 
 load("@com_github_nelhage_rules_boost//:boost/boost.bzl", "boost_deps")