Separate svc accounts for raw-data-api and fmtm

[spwoodcock]

What type of PR is this? (check all applicable)

• 🍕 Feature
• 🐛 Bug Fix
• 📝 Documentation
• 🧑‍💻 Refactor
• ✅ Test
• 🤖 Build or CI
• ❓ Other (please specify)

Related Issue

Related to #1497

Describe this PR

• This is a temp solution.
• Separates service account tokens for raw-data-api data extract generation and FMTM temporary auth.
• Two variables: RAW_DATA_API_AUTH_TOKEN and OSM_SVC_ACCOUNT_TOKEN.
• In future we may remove the temp auth OSM_SVC_ACCOUNT_TOKEN and replace with a JWT-based auth.

Review Guide

Notes for the reviewer. How to test this change?

Checklist before requesting a review

• 📖 Read the FMTM Contributing Guide: https://github.com/hotosm/fmtm/blob/main/CONTRIBUTING.md
• 📖 Read the HOT Code of Conduct: https://docs.hotosm.org/code-of-conduct
• 👷‍♀️ Create small PRs. In most cases, this will be possible.
• ✅ Provide tests for your changes.
• 📝 Use descriptive commit messages.
• 📗 Update any related documentation and include any relevant screenshots.

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