ruby 2.7 is EOL since 2023-03-31

[garloff]

This means that

• bugs and security issues won't be addressed
• an increasing number of gems won't work with it any longer

Currently we see this:

Post-install message from i18n:
PSA: I18n will be dropping support for Ruby < 3.2 in the next major release (April 2025), due to Ruby's end of life for 3.1 and below (https://endoflife.date/ruby). Please upgrade to Ruby 3.2 or newer by April 2025 to continue using future versions of this gem.
fatal: detected dubious ownership in repository at '/github/workspace'
To add an exception for this directory, call:

	git config --global --add safe.directory /github/workspace
/github/workspace/vendor/bundle/ruby/2.7.0/gems/google-protobuf-3.25.6-x86_64-linux/lib/google/protobuf/descriptor_pb.rb:13: [BUG] Segmentation fault at 0x00000000000043f0
ruby 2.7.8p225 (2023-03-30 revision 1f4d455848) [x86_64-linux-musl]

-- Control frame information -----------------------------------------------
c:0046 p:---- s:0226 e:000225 CFUNC  :add_serialized_file
c:0045 p:0037 s:0221 e:000220 TOP    /github/workspace/vendor/bundle/ruby/2.7.0/gems/google-protobuf-3.25.6-x86_64-linux/lib/google/protobuf/descriptor_pb.rb:13 [FINISH]
c:0044 p:---- s:0212 e:000211 CFUNC  :require
[...]

[garloff]

We have two options:
(a) Somehow find a way to get the website to build again at least for the months to come, maybe by using a different protobuf version ...
(b) Update ruby to a newer version and sort out version dependencies that might hold us back, creating a longer term solution

If (a) turns out to be significantly easier, it would be good enough from my perspective ...

[garloff]

It seems indeed that pinning google-protobuf to 3.25.5 (instead of 3.25.6) addresses the build issue.

[garloff]

Partially addressed in #1092.
At least it fixes the build ...