logfire client for zig

fix: update otel-zig to fix BatchSpanProcessor mutex contention

otel-zig's BatchSpanProcessor held the mutex during HTTP export,
blocking all span.end() callers for seconds. Updated to version
that releases the lock before exporting.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

+1 -1
+1 -1
build.zig.zon
··· 11 11 .dependencies = .{ 12 12 .opentelemetry = .{ 13 13 .url = "https://github.com/zzstoatzz/otel-zig/archive/refs/heads/trunk.tar.gz", 14 - .hash = "otel-0.0.1-9q9ZWhF9EwACdQz1-ETtOK8585KTaWSFqmGgbfxW4l7c", 14 + .hash = "otel-0.0.1-9q9ZWouBEwDUldyFYCJOBowt8fGq950Ri6Q7CbYIFaEp", 15 15 }, 16 16 }, 17 17 }