Add the pin-actions.json config preset to the base Renovate config

[vgrassia]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/DEVOPS-1726?atlOrigin=eyJpIjoiY2ZjZjU3NzIzZWMwNDdkM2FjNTg0MjdlMGFkODBmNjQiLCJwIjoiaiJ9

🚧 Type of change

• 🎂 Other

📔 Objective

This PR updates the Renovate config to pull in the pin-actions.json shareable config preset from the renovate-config repository which pins GitHub Actions at certain versions.

📋 Code changes

• .github/renovate.json: Add pin-actions.json shareable config preset.

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation 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

[bitwarden-bot]

Checkmarx One – Scan Summary & Details – 24f03b92-bb55-4f37-a4e2-355ee1dcf3e3

No New Or Fixed Issues Found