use nixpkgs version and build number as version instead of bare hash

Using a bare hash confuses tools that parse the version string to show
updated packages, namely `nvd`. In place of the bare nixpkgs revision
hash, the NixOS version number including a prefix of the revision hash
is now used.

programs-sqlite.nix

@@ -4,7 +4,7 @@ let
 in
 pkgs.stdenvNoCC.mkDerivation {
   pname = "programs-sqlite";
-  version = rev;
+  version = meta.name;
 
   src = fetchurl {
     url = "https://releases.nixos.org${meta.url}";
@@ -18,4 +18,4 @@ pkgs.stdenvNoCC.mkDerivation {
   outputHashAlgo = "sha256";
   outputHashMode = "flat";
   outputHash = meta.programs_sqlite_hash;
-}
+}