Ensure submodule inclusion + Fix the tests

[aminya]

Description of the change

• This ensures that the submodules are downloaded before publishing to npm
• Update temp to fix the tests on Windows

Since #103 is not still merged:

• Updated the Travis and Appveyor configs just to get CI working for now: Use Node 12 and MSVC 2015 in the CI
• Regenerated package-lock.json

Benefits

Fixes the Atom bootstrap error:

Details

make: *** No rule to make target 'Release/obj.target/libgit2/deps/libgit2/src/annotated_commit.o', needed by 'Release/obj.target/git2.a'.  Stop.
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/lib/node_modules/node-gyp/lib/build.js:194:23)
gyp ERR! stack     at ChildProcess.emit (node:events:376:20)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:277:12)
gyp ERR! System Linux 5.9.11-3-MANJARO
gyp ERR! command "/usr/bin/node" "/usr/lib/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /home/illright/atom/apm/node_modules/atom-package-manager/node_modules/git-utils
gyp ERR! node -v v15.3.0
gyp ERR! node-gyp -v v7.1.0
gyp ERR! not ok

Fixes #69
Closes #105

Verification

The CI and the tests pass:

After publishing

Atom and apm should bump their dependency to 5.7.1.

[aminya]

@sadick254 @darangi This bug prevents people to be able to bootstrap Atom. Could you merge it as soon as possible? It should be released as 5.7.1

[aminya]

It is fixed in this commit. I would recommend closing the PR to speed up the process.

[aminya]

@sadick254 The issue that this PR fixes is much important than what I see has been merged yesterday. Could you merge this?

Atom cannot be bootstrapped because of this.
Apm cannot be bootstrapped because of this.

FYI, 1 person has left our atom-community organization since two weeks ago. 😞

[DeeDeeG]

@sadick254 I posted an issue #109 to fully explain the issue, but basically git-utils@v5.7.0 is broken and we would request that it be re-uploaded, perhaps as v5.7.1. Because the deps/libgit2 submodule is missing from that version.

This PR (or a similar approach) would make it so the submodule initializes automatically during the npm publish process. I am maybe not 100% sure of every detail of this PR, but the community fork of Atom is currently affected. So some sort of resolution would be much appreciated. The community fork of Atom is trying to pull in this version of git-utils and that is preventing the fork from building. The issue may also interfere with upstream/official Atom some time in the future if not addressed. Sorry to bother you about it, but @aminya is right, it is a somewhat pressing issue IMO.

[DeeDeeG]

@aminya if we merge atom-community/apm#70 and update our copy of apm then we can work around this by installing apm with exact dependencies (with npm ci).

Eventually having a new version of git-utils published with the submodule included would be much appreciated.

[sadick254]

This looks great.

[DeeDeeG]

Thank you for merging, and for publishing the new release!