Build images for 3.2.9, 3.3.10, and 3.4.8

[sikachu]

This is a routine update to add recently released version of Ruby.

• https://www.ruby-lang.org/en/news/2025/07/24/ruby-3-2-9-released/
• https://www.ruby-lang.org/en/news/2025/10/23/ruby-3-3-10-released/
• https://www.ruby-lang.org/en/news/2025/12/17/ruby-3-4-8-released/

The list of released version of Ruby can be found on https://www.ruby-lang.org/en/downloads/releases/

For rails-buildpack, we're using these *-bookworm amd64 images:

• https://hub.docker.com/layers/library/ruby/3.2.9-bookworm/images/sha256-24798ed68e173702388b161e78bb46a7290a29665ed8aa11d8005e69340cfd51
• https://hub.docker.com/layers/library/ruby/3.3.10-bookworm/images/sha256-4b39fa4a30a508b41a4629c6fbec6deafdcc511fdc8c53259319af4c2aa2698b
• https://hub.docker.com/layers/library/ruby/3.4.8-bookworm/images/sha256-53339b029598abb7421a00c46c9414abb5cf2577fe4e7584bc28b29527fcc5d7

For rails-base, we're using these *-slim-bookworm amd64 images:

• https://hub.docker.com/layers/library/ruby/3.2.9-slim-bookworm/images/sha256-08a8ffacf9f48b606fbad281c6aeb4d4cb967d84500f6e853397b96c46446213
• https://hub.docker.com/layers/library/ruby/3.3.10-slim-bookworm/images/sha256-5cf65ae398d2a94d5eb0da1a1ddf68668d77164d8060fb061ad26aa4ce362be5
• https://hub.docker.com/layers/library/ruby/3.4.8-slim-bookworm/images/sha256-3b3c4f2426c6e3498368060c0ecfebc92a09564cac833cae1be41995b28cd75c

[AyrtonIseri]

Can confirm all shas, tags (maybe), and versions are consistent 👍

[AyrtonIseri]

thanks!