[roll] Roll fuchsia [super_parser] Parse metadata header

Parser can now parse the metadata header. Next up would be to parse the
partitions, extents, groups, and block devices entries.

Original-Bug: 404952286
Test: fx test //src/storage/lib/super_parser:super_parser_tests
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1265546
Original-Revision: 25c79131dbec0e97871fcf238109c56dec892925
GitOrigin-RevId: c7014f2aab76d1908c079f84c3be940462acd21d
Change-Id: I8ead0596049a2b328bf42ce7cff608d4c14a7ae1
diff --git a/stem b/stem
index 3708954..fbeb327 100644
--- a/stem
+++ b/stem
@@ -8,7 +8,7 @@
              root=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="7c08cd5ca2ce3651bde69d702ea4740d84cd23d1"
+             revision="25c79131dbec0e97871fcf238109c56dec892925"
              />
   </imports>
   <projects>