fix(update): rename underscore-package-version to mangled-package-version for proper commit bumping

* Melange now only updates `expected-commit` in `git-checkout` when tags match either `${{package.version}}` or `${{vars.mangled-package-version}}` ([melange#2008](chainguard-dev/melange#2008))


Signed-off-by: Debasish Biswas <debasishbsws.dev@gmail.com>

Author: debasishbsws

ruby-3.2.yaml

@@ -49,14 +49,14 @@ var-transforms:
   - from: ${{package.version}}
     match: \.
     replace: _
-    to: underscore-package-version
+    to: mangled-package-version
 
 pipeline:
   - uses: git-checkout
     with:
       repository: https://github.com/ruby/ruby
-      tag: v${{vars.underscore-package-version}}
-      expected-commit: 13f495dc2c98d0762d9af37e7143d2e2a07d9926
+      tag: v${{vars.mangled-package-version}}
+      expected-commit: 8f611e0c46012e321b39efd629eb5f4f53976863
       cherry-picks: |
         ruby_3_2/9f00b8872d3e294312c99150f1c34b6b3fa74985: Bump up resolv-0.2.3 for Ruby 3.2 (CVE-2025-24294)