Update bufstream to v0.3.12 (#24)

Co-authored-by: emcfarlane <3036610+emcfarlane@users.noreply.github.com>

Author: github-actions[bot]

Formula/bufstream.rb

@@ -1,15 +1,15 @@
 class Bufstream < Formula
   desc "Drop-in replacement for Apache Kafka with improved data quality and lower costs"
   homepage "https://buf.build/product/bufstream"
-  version "0.3.11"
+  version "0.3.12"
   url "https://buf.build/dl/bufstream/v#{version}/bufstream-v#{version}-Darwin-arm64" # Default URL for stable bottle generation
-  sha256 "TODO" # Default SHA for the above URL
+  sha256 "30b3f9169fcc9ac11043c9e9d81334659b97e49c07a15bf1c35a1c696e7eb65c" # Default SHA for the above URL
 
   checksums = {
-    "darwin-arm64" => "TODO",
-    "darwin-x86_64" => "TODO",
-    "linux-arm64" => "TODO",
-    "linux-x86_64" => "TODO",
+    "darwin-arm64" => "30b3f9169fcc9ac11043c9e9d81334659b97e49c07a15bf1c35a1c696e7eb65c",
+    "darwin-x86_64" => "999c70572d9761b5edc1bc90ab9d6da0a766e8449765b06fe77b04d7e4858359",
+    "linux-arm64" => "a2ed8582e728b63bfcb6117a4134ac80e118bdfa1f8566685cab3ec9ed5e3ac5",
+    "linux-x86_64" => "d7111074ce5cba9827139884484f861dba53c6f1ca3be29f6f5d7247a2e45894",
   }
 
   on_macos do