Fix #31917: Correct the PDF font size.

htdocs/includes/modules/cheque/pdf/pdf_blochet.class.php

htdocs/includes/modules/commande/pdf_edison.modules.php

htdocs/includes/modules/commande/pdf_einstein.modules.php

...s/modules/expedition/pdf/pdf_expedition_merou.modules.php

.../modules/expedition/pdf/pdf_expedition_rouget.modules.php

htdocs/includes/modules/fichinter/pdf_soleil.modules.php

...cs/includes/modules/livraison/pdf/pdf_sirocco.modules.php

htdocs/includes/modules/livraison/pdf/pdf_typhon.modules.php

htdocs/includes/modules/project/pdf/pdf_baleine.modules.php

htdocs/includes/modules/propale/pdf_propale_azur.modules.php

...cs/includes/modules/propale/pdf_propale_jaune.modules.php