Update linker version script globs to include *pb::* instead of jus…

…t `pb::*`

For some reason it seems that `pb::*` does not match the type info symbol for
`pb::CppFeatures`. Ordinarily this does not seem to cause problems, but we
received a report about it causing issues with sanitizers:
https://groups.google.com/g/protobuf/c/ytkvjXXdG2g/m/hk7a5JnCAwAJ

For clarity I made the same change for `upb::`, though I don't think this is
strictly necessary since it is covered by the `*pb::*` glob.

PiperOrigin-RevId: 642390692

src/libprotobuf-lite.map

@@ -2,7 +2,7 @@
   global:
     extern "C++" {
       *google*;
-      pb::*;
+      *pb::*;
     };
     scc_info_*;
     descriptor_table_*;

src/libprotobuf.map

@@ -2,7 +2,7 @@
   global:
     extern "C++" {
       *google*;
-      pb::*;
+      *pb::*;
     };
     scc_info_*;
     descriptor_table_*;

src/libprotoc.map

@@ -2,8 +2,8 @@
   global:
     extern "C++" {
       *google*;
-      pb::*;
-      upb::*;
+      *pb::*;
+      *upb::*;
     };
     scc_info_*;
     descriptor_table_*;