fix: replace workspace:^ in peerDependencies with real version ranges

[pyramation]

Summary

npm install -g pgpm fails with EUNSUPPORTEDPROTOCOL: Unsupported URL Type "workspace:" because graphile-llm@0.14.0 was published with "graphile-search": "workspace:^" in its peerDependencies.

The workspace: protocol is a pnpm feature that should be replaced with real versions during publish, but the lerna/makage publish pipeline doesn't replace it in peerDependencies — only in dependencies.

The dependency chain: pgpm → @pgpmjs/export → @pgpmjs/migrate-client → @constructive-io/graphql-query → graphile-settings → graphile-llm@0.14.0 (boom).

Fix: replace workspace:^ with real version ranges in peerDependencies across 4 packages:

# graphile-llm
- "graphile-search": "workspace:^"
+ "graphile-search": "^1.18.0"

# graphile-postgis, graphile-pg-aggregates, graphile-ltree
- "graphile-connection-filter": "workspace:^"
+ "graphile-connection-filter": "^1.13.0"

Only graphile-llm is currently broken on npm; the other three are preventive fixes (same pattern, not yet leaked to published versions).

Link to Devin session: https://app.devin.ai/sessions/8405d6fc90a04e5e9e17471f7eb69e33
Requested by: @pyramation

[devin-ai-integration]

🤖 Devin AI Engineer

I'll be helping with this pull request! Here's what you should know:

✅ I will automatically:

• Address comments on this PR. Add '(aside)' to your comment to have me ignore it.
• Look at CI failures and help fix them

Note: I can only respond to comments from users who have write access to this repository.

⚙️ Control Options:

• Disable automatic comment, CI, and merge conflict monitoring