Use buildPackages for native dependencies

Unfortunately, releaseTools.nixBuild does not separate native and
non-native build inputs. As an alternative, we can just use
buildPackages to get the native version of some packages like:

- pkgconfig
- git
- curl
- utillinux

release-common.nix

@@ -50,14 +50,16 @@ rec {
   buildDeps =
     [ curl
       bzip2 xz brotli editline
-      openssl pkgconfig sqlite boehmgc
+      openssl sqlite boehmgc
       boost
 
+      buildPackages.pkgconfig
+
       # Tests
-      git
-      mercurial
+      buildPackages.git
+      buildPackages.mercurial
     ]
-    ++ lib.optionals stdenv.isLinux [libseccomp utillinuxMinimal]
+    ++ lib.optionals stdenv.isLinux [libseccomp buildPackages.utillinuxMinimal]
     ++ lib.optional (stdenv.isLinux || stdenv.isDarwin) libsodium
     ++ lib.optional (stdenv.isLinux || stdenv.isDarwin)
       ((aws-sdk-cpp.override {