Update valgrind suppressions

valgrind.supp

@@ -70,45 +70,45 @@
   Memcheck:Leak
   match-leak-kinds: reachable
   ...
-  obj:/usr/lib/x86_64-linux-gnu/libcairo.so.2.11600.0
+  obj:/usr/lib/x86_64-linux-gnu/libcairo.so.2.11800.0
 }
 {
   libpangocairo font stuff
   Memcheck:Leak
-  match-leak-kinds: reachable
+  match-leak-kinds: reachable,possible
   ...
-  obj:/usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0.5000.12
+  obj:/usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0.5400.0
 }
 {
   libpango font stuff
   Memcheck:Leak
   ...
-  obj:/usr/lib/x86_64-linux-gnu/libpango-1.0.so.0.5000.12
+  obj:/usr/lib/x86_64-linux-gnu/libpango-1.0.so.0.5400.0
 }
 {
   libexpat font stuff
   Memcheck:Leak
   match-leak-kinds: reachable
   ...
-  obj:/usr/lib/x86_64-linux-gnu/libexpat.so.1.8.10
+  obj:/usr/lib/x86_64-linux-gnu/libexpat.so.1.9.2
 }
 {
   libfontconfig font stuff
   Memcheck:Leak
   ...
-  obj:/usr/lib/x86_64-linux-gnu/libfontconfig.so.1.12.0
+  obj:/usr/lib/x86_64-linux-gnu/libfontconfig.so.1.12.1
 }
 {
   libharfbuzz font stuff
   Memcheck:Leak
   ...
-  obj:/usr/lib/x86_64-linux-gnu/libharfbuzz.so.0.60000.0
+  obj:/usr/lib/x86_64-linux-gnu/libharfbuzz.so.0.60830.0
 }
 {
   libfreetype font stuff
   Memcheck:Leak
   ...
-  obj:/usr/lib/x86_64-linux-gnu/libfreetype.so.6.18.3
+  obj:/usr/lib/x86_64-linux-gnu/libfreetype.so.6.20.1
 }
 {
   libgobject 1