Move to GitHub Actions

[vweevers]

• level-concat-iterator: Move to GitHub Actions concat-iterator#26, Level/concat-iterator@390d8c7
• level-supports: Level/supports@1f0452f, Level/supports@2338ee5
• abstract-leveldown: chore(ci): converted travis workflow to github action abstract-leveldown#375, Level/abstract-leveldown@b3331f8
• codec: chore(ci): move to github actions codec#65, Level/codec@f56349c
• errors: chore(ci): converted travis workflow to github action errors#35, Level/errors@dcdfe8b
• level-iterator-stream: chore(ci): converted travis workflow to github action iterator-stream#69
• encoding-down: chore(ci): converted travis workflow to github action encoding-down#99, Level/encoding-down@82d55af
• level-js: Move to GitHub Actions level-js#211, Level/level-js@44f2eed, Only run 1 GitHub Actions workflow at a time level-js#212
• memdown: chore(ci): converted travis workflow to github action memdown#208, Level/memdown@d80dc65
• leveldown: Move to GitHub Actions leveldown#764
• deferred-leveldown: chore(ci): converted travis workflow to github action deferred-leveldown#87, Level/deferred-leveldown@7111205
• levelup: chore(ci): converted travis workflow to github action levelup#718, Level/levelup@521b34c, Level/levelup@f4d6a1d
• packager: chore(ci): converted travis workflow to github action packager#101, Level/packager@d151d7d
• level: chore(ci): converted travis workflow to github action level#196
• rocksdb: to be copied from leveldown once ready (including a successful leveldown release)
• level-compose: chore(ci): converted travis workflow to github action compose#10, Level/compose@a59494a
• level-ws: chore(ci): move to github actions level-ws#124
• level-test: Move to GitHub Actions level-test#143
• level-mem: Move to GitHub Actions mem#63, Level/mem@f93313e, Level/mem@19e15a4
• level-rocksdb: Level/level-rocksdb@d635b37
• subleveldown: Move to GitHub Actions subleveldown#99
• multileveldown: Move to GitHub Actions multileveldown#26
• level-party: Move to GitHub Actions party#31
• level-bench: chore(ci): move to github actions bench#26
• webpack-starter: chore(ci): converted travis workflow to github action webpack-starter#9
• browserify-starter: chore(ci): move to github actions browserify-starter#5
• electron-demo: chore(ci): move to github actions electron-demo#117
• awesome: Level/awesome@ccbac95
• community: 4ccd824
• leveldown-hyper and level-hyper (slated to be deprecated)
• leveljs.org: Level/leveljs.org@3bd49f2
• level-ttl

On the side:

• I purchased $268 USD worth of Travis credits since January (just to keep usual builds going). We have $549 USD in OpenCollective, have yet to use that. I will submit an expense.

Cleanup tasks once the above is done:

• Add github-actions ecosystem to dependabot.yml where missing
  • leveljs.org
  • subleveldown
  • multileveldown
  • party
  • bench
  • mem
  • browserify-starter
  • electron-demo
  • codec
  • level-js
• Remove git fetch --tags step thanks to vweevers/remark-changelog@c3e25b1
  • level-test
  • abstract-leveldown
  • deferred-leveldown
  • packager
  • subleveldown
  • multileveldown
  • party
  • mem
• Remove extraneous whitespace
  • bench
  • browserify-starter
  • electron-demo
• Remove Travis and AppVeyor from GitHub Apps on org
• Revoke tokens of and delete the @level-ci machine account
• Cleanup coveralls account

[vweevers]

In addition, I want to move from Coveralls to Codecov. I checked coverallsapp/github-action, it requires a github token as input and sends that to https://coveralls.io. Nope. In contrast, the codecov-action is tokenless for public repositories.

[ralphtheninja]

@vweevers on a roll! 😄

[vweevers]

Just in time: https://github.blog/changelog/2021-04-19-github-actions-limit-workflow-run-or-job-concurrency/

We will need this on repositories with browser tests, to avoid too many parallel jobs against Sauce Labs.

[cristianossd]

@vweevers, I think I can contribute with these migrations. I gonna start with packager