chore: add Pierre Frances to humans.txt (#48986)

## What kind of change does this PR introduce?

Chore — adds Pierre Frances to `apps/docs/public/humans.txt`, inserted
in alphabetical order (after Pierre Ducroquet).

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Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

apps/docs/public/humans.txt

@@ -239,6 +239,7 @@ Pedro Rodrigues
 Peter Lyn
 Peter Soderberg
 Pierre Ducroquet
+Pierre Frances
 Qiao Han
 Quintin Willison
 Rafael Chacón