[Bug]: PDO::connect hook missing peerServiceSources configuration

[redpanda]

Bug report

The PDO integration inconsistently sets peerServiceSources across different hooks, preventing peer
service mapping from working on connection spans.

Current Behavior

• PDO::exec, PDO::query, PDO::prepare hooks set peerServiceSources ✅
• PDO::connect hook does NOT set it ❌

Result: Peer service mapping works for query execution but fails for connection initialization.

Expected Behavior
All PDO hooks should set peerServiceSources to enable consistent peer service mapping.

PHP version

8.5

Tracer or profiler version

1.16.0

Installed extensions

No response

Output of phpinfo()

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Upgrading from

No response