Roll Fuchsia SDK from 14.20230826.1.1 to 15.20230930.1.1

Change-Id: I24ea80ff7cdddca7edb93f8942f4645d42cf88d3
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/112270
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index c909ae0..384d37b 100644
--- a/DEPS
+++ b/DEPS
@@ -94,7 +94,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Fuchsia sdk
   # and whatever else without interference from each other.
-  'fuchsia_version': 'version:14.20230826.1.1',
+  'fuchsia_version': 'version:15.20230930.1.1',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling GN CIPD package version
   # and whatever else without interference from each other.