docs(troubleshooting): list libgbm-dev dependency

[mathiasbynens]

This also alphasorts the dependency lists.

Fixes #5661.

[shobhitsharma]

@mathiasbynens This issue still persists with v3.0.2, I'm getting same error.

[mwalter]

I'm using puppeteer 3.0.2 in my Angular project. When Github Actions is executing "ng test" I get the following output:

02 05 2020 18:48:18.973:INFO [launcher]: Trying to start ChromeHeadless again (1/2).
02 05 2020 18:48:19.632:ERROR [launcher]: Cannot start ChromeHeadless
	/home/runner/work/Sprinter/Sprinter/node_modules/puppeteer/.local-chromium/linux-737027/chrome-linux/chrome: error while loading shared libraries: libgbm.so.1: cannot open shared object file: No such file or directory

02 05 2020 18:48:19.633:ERROR [launcher]: ChromeHeadless stdout: 
02 05 2020 18:48:19.633:ERROR [launcher]: ChromeHeadless stderr: /home/runner/work/Sprinter/Sprinter/node_modules/puppeteer/.local-chromium/linux-737027/chrome-linux/chrome: error while loading shared libraries: libgbm.so.1: cannot open shared object file: No such file or directory

02 05 2020 18:48:19.646:INFO [launcher]: Trying to start ChromeHeadless again (2/2).
02 05 2020 18:48:19.690:ERROR [launcher]: Cannot start ChromeHeadless
	/home/runner/work/Sprinter/Sprinter/node_modules/puppeteer/.local-chromium/linux-737027/chrome-linux/chrome: error while loading shared libraries: libgbm.so.1: cannot open shared object file: No such file or directory

02 05 2020 18:48:19.690:ERROR [launcher]: ChromeHeadless stdout: 
02 05 2020 18:48:19.690:ERROR [launcher]: ChromeHeadless stderr: /home/runner/work/Sprinter/Sprinter/node_modules/puppeteer/.local-chromium/linux-737027/chrome-linux/chrome: error while loading shared libraries: libgbm.so.1: cannot open shared object file: No such file or directory

02 05 2020 18:48:19.713:ERROR [launcher]: ChromeHeadless failed 2 times (cannot start). Giving up.
npm ERR! Test failed.  See above for more details.
##[error]Process completed with exit code 1.