Update to node 10.6

[kderme]

Depends on #1999

This tracks IntersectMBO/cardano-node#6331

[kderme]

This fails with

warning: ignoring the client-specified setting 'trusted-public-keys', because it is a restricted setting and you are not a trusted user
error:
       … while evaluating a branch condition
         at «github:NixOS/nixpkgs/647e5c14cbd5067f44ac86b74f014962df460840?narHash=sha256-JVZl8NaVRYb0%2B381nl7LvPE%2BA774/dRpif01FKLrYFQ%3D»/lib/attrsets.nix:1700:11:
         1699|           in
         1700|           if length values == 1 || pred here (elemAt values 1) (head values) then
             |           ^
         1701|             head values

       … in the right operand of the OR (||) operator
         at «github:NixOS/nixpkgs/647e5c14cbd5067f44ac86b74f014962df460840?narHash=sha256-JVZl8NaVRYb0%2B381nl7LvPE%2BA774/dRpif01FKLrYFQ%3D»/lib/attrsets.nix:1700:33:
         1699|           in
         1700|           if length values == 1 || pred here (elemAt values 1) (head values) then
             |                                 ^
         1701|             head values

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: Cannot build '/nix/store/hh719bnk41r4cid2j9b1ral2a5ncc8i7-cardano-db-sync-plan-to-nix-pkgs.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/8xvxk0c41f08sr8r7nhbzqas610qp17k-cardano-db-sync-plan-to-nix-pkgs
         /nix/store/9pln7pnh2n4fxl928pihak4g0qff8wp3-cardano-db-sync-plan-to-nix-pkgs-freeze
       Last 6 log lines:
       > Error: [Cabal-7090]
       > Error parsing project file /build/tmp.yw5S9onpMG/cabal.project:
       > ???:95:0:
       > unexpected 'c'
       > expecting space or end of input
       >
       For full logs, run:
         nix log /nix/store/hh719bnk41r4cid2j9b1ral2a5ncc8i7-cardano-db-sync-plan-to-nix-pkgs.drv