chore: Fix secrets scan

[chargome]

• removes unused legacy env vars
• ignores trufflehog scan on algolia key (which is public)

[vercel[bot]]

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Name	Status	Preview	Comments	Updated (UTC)
develop-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 21, 2024 4:22pm
sentry-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 21, 2024 4:22pm

1 Skipped Deployment

| Name | Status | Preview | Comments | Updated (UTC) | | :--- | :----- | :------ | :------- | :------ | | **changelog** | ⬜️ Ignored ([Inspect](https://vercel.com/sentry/changelog/8DivP8bkRxt8fhnb78r5VU5RDsN9)) | | | Nov 21, 2024 4:22pm |

[codecov[bot]]

Bundle Report

Changes will decrease total bundle size by 15 bytes (-0.0%) :arrow_down:. This is within the configured threshold :white_check_mark:

Detailed changes

| Bundle name | Size | Change | | ----------- | ---- | ------ | | sentry-docs-server-cjs | 10.28MB | 9 bytes (-0.0%) :arrow_down: | | sentry-docs-client-array-push | 9.29MB | 6 bytes (-0.0%) :arrow_down: |