Bump ruamel-yaml from 0.18.14 to 0.18.15 (#10310)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -15,7 +15,7 @@ esphome-dashboard==20250814.0
 aioesphomeapi==39.0.0
 zeroconf==0.147.0
 puremagic==1.30
-ruamel.yaml==0.18.14 # dashboard_import
+ruamel.yaml==0.18.15 # dashboard_import
 esphome-glyphsets==0.2.0
 pillow==10.4.0
 cairosvg==2.8.2