Bump astro from 5.14.4 to 5.15.3 in /website in the dependabot group … #228

Job	Run time
linux (ubuntu-latest, armv7)	6m 45s
musllinux (ubuntu-latest, x86)	6m 48s
linux (ubuntu-latest, aarch64)	7m 6s
linux (ubuntu-latest, ppc64le)	7m 2s
macos (macos-15-intel)	9m 8s
sdist	12s
linux (ubuntu-latest, x86)	10m 32s
windows (windows-latest, x64)	8m 51s
musllinux (ubuntu-latest, x86_64)	6m 18s
musllinux (ubuntu-latest, armv7)	6m 2s
windows (windows-latest, x86)	5m 47s
linux (ubuntu-latest, x86_64)	6m 20s
musllinux (ubuntu-latest, aarch64)	6m 12s
macos (macos-14, aarch64)	6m 27s
linux (ubuntu-latest, s390x)	6m 40s
Release	-1s
	1h 40m 9s

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