ENH: Update GDCM tag to v3.2.8

Author: blowekamp

Modules/ThirdParty/GDCM/UpdateFromUpstream.sh

@@ -8,7 +8,7 @@ readonly name="GDCM"
 readonly ownership="GDCM Upstream <gdcm-developers@lists.sourceforge.net>"
 readonly subtree="Modules/ThirdParty/GDCM/src/gdcm"
 readonly repo="https://github.com/malaterre/GDCM.git"
-readonly tag="244fdbeadecbb03b29ace5542aa1c694d36195bb"
+readonly tag="v3.2.8"
 readonly shortlog=false
 readonly exact_tree_match=false
 readonly paths="