Bump social-share-button from 1.2.3 to 1.2.4

Bumps [social-share-button](https://github.com/huacnlee/social-share-button) from 1.2.3 to 1.2.4.
- [Release notes](https://github.com/huacnlee/social-share-button/releases)
- [Changelog](https://github.com/huacnlee/social-share-button/blob/master/CHANGELOG.md)
- [Commits](https://github.com/huacnlee/social-share-button/compare/v1.2.3...v1.2.4)

---
updated-dependencies:
- dependency-name: social-share-button
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile

@@ -53,7 +53,7 @@ gem "rollbar", "~> 3.1.2"
 gem "sassc-rails", "~> 2.1.2"
 gem "savon", "~> 2.12.1"
 gem "sitemap_generator", "~> 6.1.2"
-gem "social-share-button", "~> 1.2.3"
+gem "social-share-button", "~> 1.2.4"
 gem "sprockets", "~> 3.7.2"
 gem "translator-text", "~> 0.1.0"
 gem "turbolinks", "~> 5.2.1"