Add arch to commit message install (#3923)

- add `arch` and `status` fields to the commit message when testing other projects
- status is needed to enable GitHub commit status checks for this build
- renamed a couple of test jobs

Example commit message with this change in https://github.com/cypress-io/cypress-test-node-versions/commit/61c24b20006e1de91a8cff77de726d485191bb0d

<img width="1011" alt="Screen Shot 2019-04-09 at 11 39 31 AM" src="https://user-images.githubusercontent.com/2212006/55814270-2c97ad00-5abc-11e9-8a6d-27fcec214130.png">

scripts/test-other-projects.js

@@ -16,11 +16,13 @@ const { npm, binary } = getNameAndBinary(process.argv)
 la(is.unemptyString(npm), 'missing npm url')
 la(is.unemptyString(binary), 'missing binary url')
 const platform = os.platform()
+const arch = os.arch()
 
 console.log('bumping versions for other projects')
-console.log('npm:', npm)
-console.log('binary:', binary)
-console.log('platform:', platform)
+console.log(' npm:', npm)
+console.log(' binary:', binary)
+console.log(' platform:', platform)
+console.log(' arch:', arch)
 
 const cliOptions = minimist(process.argv, {
   string: 'provider',
@@ -87,13 +89,30 @@ if (commitInfo) {
 const env = {
   CYPRESS_INSTALL_BINARY: binary,
 }
-const commitMessageInstructions = getInstallJson(
-  npm,
+
+// also pass "status" object that points back at this repo and this commit
+// so that other projects can report their test success as GitHub commit status check
+let status = null
+const commit = commitInfo && commitInfo.sha
+
+if (commit && is.commitId(commit)) {
+  // commit is full 40 character hex string
+  status = {
+    owner: 'cypress-io',
+    repo: 'cypress',
+    sha: commit,
+  }
+}
+
+const commitMessageInstructions = getInstallJson({
+  packages: npm,
   env,
   platform,
-  shortNpmVersion, // use as version as branch name on test projects
-  commitInfo && commitInfo.sha
-)
+  arch,
+  branch: shortNpmVersion, // use as version as branch name on test projects
+  commit,
+  status,
+})
 const jsonBlock = toMarkdownJsonBlock(commitMessageInstructions)
 const footer = 'Use tool `commit-message-install` to install from above block'
 let message = `${subject}\n\n${jsonBlock}\n${footer}\n`