v3.7 link is not correct for Linux

[yuya-oc]

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Summary
Following links are incorrect.

• .tar.gz: x64
• .deb: amd64, i386

It seems that filename format has been changed by electron-builder.

Steps to reproduce
Start Jenkins job to cut release.

Possible fixes

1. Configure electron-builder to explicitly set format.
2. Fix renaming script of Jenkins job.

[yuya-oc]

Fixed the Jenkins job. The filename format was changed by electron-userland/electron-builder#803 .

It's correct in Debian though, but we should keep previous format for consistence of URLs now.