feat: vaccine booster

[andcomit]

Description

This PR tackles:

• feat: vaccine booster

Checklist

• [X] I have followed the indications in the CONTRIBUTING.
• [X] The documentation related to the proposed change has been updated accordingly (plus comments in code).
• [ ] I have written new tests for my core changes, as applicable.
• [X] I have successfully run tests with my changes locally.
• [X] It is ready for review! :rocket:

[ImmuniDGR]

🚔 Safety Check 🚔

🔰 Result 🔰

• The CircleCI configuration file has been modified.

⚠️ Some configuration files don't match the development branch. If you did not perform these changes, please rebase on the development branch.

🛠 Diagnostic information 🛠

• CircleCI scheduler pipeline: #38897 (id: d5fe1d95-90f9-4db0-86b9-5ba4b352693a)
• Last verified commit: 31b53f10b27b274f3efb57b4400ab5eeb5505bd9
• Time of check: 01/11/2021, 14:10:42 UTC
• The following protected files have been checked for changes: .editorconfig, .gitmodules, Gemfile, Gemfile.lock, app/build.gradle, app/proguard-rules.pro, build.gradle, ci/changelog_config.tpl, ci/danger/commitlint/index.ts, ci/danger/commitlint/rules.ts, ci/danger/danger.ts, ci/danger/ktlint.ts, dangerfile.ts, fastlane/Appfile, fastlane/Fastfile, gradle.properties, gradlew, gradlew.bat, package.json, publiccode.yml, scheduler_config.json, settings.gradle, template.properties, yarn.lock.