Exclude bullseye for now

I think the provided git version is too low, but even installing it from
backports doesn't work.
So, just exclude it for now

Author: Earlopain

images.rb

@@ -15,7 +15,10 @@
 #   { "variant": "alpine3.20", "platform": "linux/arm64/v8" },
 #   { "variant": "alpine3.20", "platform": "linux/386" }
 # ]
-images = variants.map do |variant|
+images = variants.filter_map do |variant|
+  # Until irb releases a new version
+  next if variant.include?("bullseye")
+
   # debian:bullseye-slim
   base_image = File.read("docker-ruby/master/#{variant}/Dockerfile")[/FROM (.*)/, 1]
   manifest_inspect = JSON.parse(`docker manifest inspect #{base_image}`)