Fix scala#19286: Freeze rubygems-update at < 3.5.0. (scala#19288)

[skip ci] v3.5.0 dropped support for Ruby 2.7.
dotty-staging · Dec 18, 2023 · 69cc6b1 · 69cc6b1
2 parents a5586c3 + b74d96b
commit 69cc6b1
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/.github/workflows/spec.yml b/.github/workflows/spec.yml
@@ -29,7 +29,8 @@ jobs:
           ruby-version: '2.7'
       - name: Install required gems
         run: |
-          gem update --system
+          gem install "rubygems-update:<3.5" --no-document
+          update_rubygems
           gem install sass-embedded -v 1.58.0
           gem install bundler:1.17.2 jekyll
           bundle install