deps/api: Bump `com_github_bufbuild_buf` -> 1.28.1 (#31358)

Signed-off-by: dependency-envoy[bot] <148525496+dependency-envoy[bot]@users.noreply.github.com>

Mirrored from https://github.com/envoyproxy/envoy @ 5409e50f675877bea5d2896cd1c20cabef23467c

bazel/repository_locations.bzl

@@ -131,11 +131,11 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         project_name = "buf",
         project_desc = "A new way of working with Protocol Buffers.",  # Used for breaking change detection in API protobufs
         project_url = "https://buf.build",
-        version = "1.27.1",
-        sha256 = "cb21aeaaa911955e84c1144f61f1f9ec171ae10013d43173f05ddb74631ba4df",
+        version = "1.28.1",
+        sha256 = "870cf492d381a967d36636fdee9da44b524ea62aad163659b8dbf16a7da56987",
         strip_prefix = "buf",
         urls = ["https://github.com/bufbuild/buf/releases/download/v{version}/buf-Linux-x86_64.tar.gz"],
-        release_date = "2023-10-17",
+        release_date = "2023-11-15",
         use_category = ["api"],
         license = "Apache-2.0",
         license_url = "https://github.com/bufbuild/buf/blob/v{version}/LICENSE",