treewide: add version to packages

Lots of packages are missing versions in their name. This adds them
where appropriate. These were found with this command:

 $ nix-env -qa -f. | grep -v '\-[0-9A-Za-z.-_+]*$' | grep -v '^hook$'

See issue #41007.

pkgs/applications/version-management/git-and-tools/gitweb/default.nix

@@ -10,7 +10,7 @@ let
     sha256 = "0wksqma41z36dbv6w6iplkjfdm0ha3njp222fakyh4lismajr71p";
   };
 in stdenv.mkDerivation {
-  name = "gitweb";
+  name = "gitweb-${stdenv.lib.getVersion git}";
 
   src = git.gitweb;