common: update xxHash submodule to v082

Among other things, provides XXH128 and XXH3.  Includes
compile fixes for gcc-13.

Signed-off-by: Matt Benjamin <mbenjamin@redhat.com>

diff --git a/src/xxHash b/src/xxHash
index 1f40c6511fa8dd9d2e337ca8c9bc18b3e87663c9..bbb27a5efb85b92a0486cf361a8635715a53f6ba 160000 (submodule)
--- a/src/xxHash
+++ b/src/xxHash
@@ -1 +1 @@
-Subproject commit 1f40c6511fa8dd9d2e337ca8c9bc18b3e87663c9
+Subproject commit bbb27a5efb85b92a0486cf361a8635715a53f6ba