Fix lifeline_canister.wasm URL and enable demo_latest.

[dskloetd]

Motivation

I saw this error in the failing CI run of demo_latest:

Downloading /Users/runner/.cache/dfinity/versions/0.13.1/wasms/lifeline.wasm
  from .gz: https://download.dfinity.systems/ic/446bd3de0b1d306bd3e0782d2d7386a7259fbd48/canisters/lifeline.wasm.gz
Error: Failed to install NNS components.
Caused by: Failed to install NNS components.
  Failed to download NNS wasm files.
    Failed to download lifeline.wasm from the IC CI.
      Failed to download and unzip '"/Users/runner/.cache/dfinity/versions/0.13.1/wasms/lifeline.wasm"' from '"https://download.dfinity.systems/ic/446bd3de0b1d306bd3e0782d2d7386a7259fbd48/canisters/lifeline.wasm.gz"'.
        Failed to unzip WASM to '/Users/runner/.cache/dfinity/versions/0.13.1/wasms/.tmpSZFsUW/wasm'
          invalid gzip header
Error: Process completed with exit code 255.

I tried the URL and it gave a 403.
I randomly tried changing the URL from lifeline.wasm.gz to lifeline_canister.wasm.gz and that did download a gzipped canister, so I guessed that would fix it.

Changes

1. Download lifeline_canister.wasm.gz instead of lifeline.wasm.gz.
2. Enable CI for demo_latest again.

[bitdivine]

Suggestion: Update the known good ic commit (in bin/versions) to the current value.

[dskloetd]

I'm not working on this right now. Feel free to take it over if you want.
To me the current bin/dfx-nns-wasm-download feels too heavy to solve the problem.
If you don't, I may have another look after finishing some other things first.