Bump rubygems/release-gem

Bumps [rubygems/release-gem](https://github.com/rubygems/release-gem) from 612653d273a73bdae1df8453e090060bb4db5f31 to a25424ba2ba8b387abc8ef40807c2c85b96cbe32.
- [Release notes](https://github.com/rubygems/release-gem/releases)
- [Commits](rubygems/release-gem@612653d...a25424b)

---
updated-dependencies:
- dependency-name: rubygems/release-gem
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/push_gem.yml

@@ -34,4 +34,4 @@ jobs:
           ruby-version: ruby
 
       # Release
-      - uses: rubygems/release-gem@612653d273a73bdae1df8453e090060bb4db5f31 # v1
+      - uses: rubygems/release-gem@a25424ba2ba8b387abc8ef40807c2c85b96cbe32 # v1