chore: add SDK integrations team as co-owners of shared config files

Add @immutable/ped-stream-sdk-integrations-list as co-owner of
pnpm-lock.yaml, pnpm-workspace.yaml, tsconfig.base.json, tsup.config.js,
and all package.json files. The audience SDK packages depend on these
shared configs and the team needs visibility when they change.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ImmutableJeffrey

.github/CODEOWNERS

@@ -24,4 +24,8 @@ package.json @immutable/blockchain-services
 /packages/audience @immutable/ped-stream-sdk-integrations-list
 /packages/game-bridge @immutable/gamesdk @immutable/blockchain-services
 /examples @immutable/devgrowth
-**/package.json @immutable/blockchain-services
+**/package.json @immutable/blockchain-services @immutable/ped-stream-sdk-integrations-list
+/pnpm-lock.yaml @immutable/blockchain-services @immutable/ped-stream-sdk-integrations-list
+/pnpm-workspace.yaml @immutable/blockchain-services @immutable/ped-stream-sdk-integrations-list
+/tsconfig.base.json @immutable/blockchain-services @immutable/ped-stream-sdk-integrations-list
+/tsup.config.js @immutable/blockchain-services @immutable/ped-stream-sdk-integrations-list