Update dependency rails to v3.0.12 - autoclosed

[uriel-mend-app[bot]]

This PR contains the following updates:

Package	Update	Change
rails	patch	'3.0.7' -> '3.0.12'

By merging this PR, the issue #15 will be automatically resolved and closed:

Severity	CVSS Score	CVE
High	7.5	CVE-2016-0751
High	7.5	CVE-2016-0752
High	7.3	CVE-2016-2098
Medium	6.5	CVE-2010-3299
Medium	6.5	CVE-2020-8167
Medium	5.3	CVE-2016-2097
Low	3.7	CVE-2011-2197
Low	3.7	CVE-2011-2932
Low	3.7	CVE-2012-1099

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• [ ] If you want to rebase/retry this PR, click this checkbox.

[uriel-mend-app[bot]]

⚠ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Gemfile.lock

Fetching gem metadata from http://rubygems.org/..........
Resolving dependencies...

Could not find compatible versions

Because rails >= 3.0.3, < 4.0.0.beta1 depends on bundler ~> 1.0
  and the current Bundler version (2.4.7) does not satisfy bundler ~> 1.0,
  rails >= 3.0.3, < 4.0.0.beta1 cannot be used.
So, because Gemfile depends on rails = 3.0.12,
  version solving has failed.

Your bundle requires a different version of Bundler than the one you're running.
Install the necessary version with `gem install bundler:1.17.3` and rerun
bundler using `bundler _1.17.3_ lock --update rails`