Add functions for interval based secret loading

[tangowithfoxtrot]

🎟️ Tracking

📔 Objective

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation
  team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed
  issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – bca0ea91-6d72-4016-ad1c-c64fe5ae1db1

Great job, no security vulnerabilities found in this Pull Request

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 53 lines in your changes missing coverage. Please review.

Project coverage is 66.61%. Comparing base (8014451) to head (6b0dd9b).
Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
bitwarden_license/bitwarden-sm/src/secrets/get.rs	0.00%	47 Missing ⚠️
...twarden_license/bitwarden-sm/src/client_secrets.rs	0.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #261      +/-   ##
==========================================
- Coverage   66.81%   66.61%   -0.20%     
==========================================
  Files         213      213              
  Lines       15922    15979      +57     
==========================================
+ Hits        10638    10645       +7     
- Misses       5284     5334      +50     

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