gemfile: use gem.coop as gem source

Sorixelle · Sorixelle · commit 8838a5e26a65 · 2025-10-07T22:53:07.000+11:00
Signed-off-by: Ruby Iris Juric &lt;ruby@srxl.me&gt;
diff --git a/Gemfile b/Gemfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-source 'https://rubygems.org'
+source 'https://gem.coop'
 ruby file: '.ruby-version'
 
 gem 'slugize', '>= 0.0.3'
