ruby3.2-version_gem: remove signing key and add test

Signed-off-by: Dentrax <furkan.turkal@chainguard.dev>

ruby3.2-version_gem.yaml

@@ -1,7 +1,7 @@
 package:
   name: ruby3.2-version_gem
-  version: 1.1.4
-  epoch: 0
+  version: 1.1.0
+  epoch: 1
   description: Versions are good. Versions are cool. Versions will win.
   copyright:
     - license: MIT
@@ -23,6 +23,8 @@ pipeline:
       tag: v${{package.version}}
       repository: https://gitlab.com/oauth-xx/version_gem
 
+  - runs: sed -i '/signing_key/d' ${{vars.gem}}.gemspec
+
   - uses: ruby/build
     with:
       gem: ${{vars.gem}}
@@ -42,3 +44,7 @@ update:
   git:
     strip-prefix: v
     tag-filter-prefix: v
+
+test:
+  pipeline:
+    - runs: ruby -e "require 'version_gem'"