[Snyk] Fix for 1 vulnerabilities

[donni106]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `rubygems` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - Gemfile

⚠️ Warning

``` Failed to update the Gemfile.lock, please update manually before merging. ```

#### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **776/1000**
**Why?** Recently disclosed, Has a fix available, CVSS 9.8 | Remote Code Execution (RCE)
[SNYK-RUBY-ACTIVERECORD-2960802](https://snyk.io/vuln/SNYK-RUBY-ACTIVERECORD-2960802) | No | No Known Exploit (*) Note that the real score may have changed since the PR was raised. Check the changes in this PR to ensure they won't cause issues with your project. ------------ **Note:** *You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.* For more information: 🧐 [View latest project report](https://app.snyk.io/org/donni106/project/e9e82317-66c9-4fa7-a2bc-b65282698bd9?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/donni106/project/e9e82317-66c9-4fa7-a2bc-b65282698bd9?utm_source=github&utm_medium=referral&page=fix-pr/settings) 📚 [Read more about Snyk's upgrade and patch logic](https://support.snyk.io/hc/en-us/articles/360003891078-Snyk-patches-to-fix-vulnerabilities) [//]: # (snyk:metadata:{"prId":"c3ef334b-d3a5-49ee-8cac-6e0f6cbef025","prPublicId":"c3ef334b-d3a5-49ee-8cac-6e0f6cbef025","dependencies":[{"name":"kaminari","from":"1.1.1","to":"1.1.1"},{"name":"nested_form_fields","from":"0.8.2","to":"0.8.2"},{"name":"rails","from":"6.1.4.1","to":"6.1.6.1"}],"packageManager":"rubygems","projectPublicId":"e9e82317-66c9-4fa7-a2bc-b65282698bd9","projectUrl":"https://app.snyk.io/org/donni106/project/e9e82317-66c9-4fa7-a2bc-b65282698bd9?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-RUBY-ACTIVERECORD-2960802"],"upgrade":["SNYK-RUBY-ACTIVERECORD-2960802"],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["pr-warning-shown","priorityScore"],"priorityScoreList":[776]}) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Remote Code Execution (RCE)](https://learn.snyk.io/lessons/malicious-code-injection/javascript?loc=fix-pr)

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