Let the build happen at /opt

Author: Edouard-chin

.github/workflows/build-rubies.yml

@@ -16,10 +16,9 @@ jobs:
             cd ruby-install-0.10.1
             make install
         - name: Install Ruby
-          run: 'ruby-install --rubies-dir ~/.rubies 3.4.7 -- --disable-install-rdoc LDFLAGS="-s"'
+          run: 'ruby-install 3.4.7 -- --disable-install-rdoc LDFLAGS="-s"'
         - name: Upload artifact
           uses: actions/upload-artifact@v5
           with:
             name: ruby-3.4.7
-            path: ~/.rubies
-            include-hidden-files: true
+            path: /opt/rubies