From 6bcdfc52830dbd7e4fc62b794ccf1b4e16241736 Mon Sep 17 00:00:00 2001
From: Santiago Rodriguez
 <46354312+santiagorodriguez96@users.noreply.github.com>
Date: Tue, 10 Nov 2026 16:52:48 -0300
Subject: [PATCH] ci: install Bundler `~> 2.4.0` for Ruby 2.7

Ruby 2.7 ships with Bundler 2.1.4, which ignores the required Ruby
version of platform-specific gems. Since prism 2.1.0 published
precompiled gems that require Ruby >= 3.3, Bundler 2.1.4 picks them
on Ruby 2.7 and `bundle install` fails.

Bundler 2.4 falls back to the generic `ruby` platform gem instead.
---
 .github/actions/install-ruby/action.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/actions/install-ruby/action.yml b/.github/actions/install-ruby/action.yml
index c46d5f18..714e9a58 100644
--- a/.github/actions/install-ruby/action.yml
+++ b/.github/actions/install-ruby/action.yml
@@ -42,9 +42,12 @@ runs:
       shell: bash
       run: |
         case ${{ inputs.version }} in
-        2.7* | 3.*)
+        3.*)
           echo "Skipping Bundler installation for Ruby ${{ inputs.version }}"
           ;;
+        2.7*)
+          gem install bundler -v '~> 2.4.0'
+          ;;
         2.5* | 2.6*)
           gem install bundler -v '~> 2.3.0'
           ;;