Setup CI/CD workflows

[n8225]

Example results:
https://github.com/n8225/shiori/actions
https://github.com/n8225/shiori/releases/tag/v1.5.2
https://github.com/n8225/shiori/pkgs/container/shiori

• Workflow
  • Pull request
    • golangci-lint (only tests code changed in pr)
    • unit tests
    • build
  • Push to master
    • golangci-lint (runs against entire repo)
    • unit tests
    • goreleaser (doesn't create a release unless HEAD is tagged, artifact available for download)
    • buildx (tagged dev and by git describe --tags unless HEAD is tagged)
  • Tag release
    • Manually ran workflow, requires input of version tag.
    • Executes git tag and pushes to master
    • goreleaser (creates release and publishes binaries)
    • buildx (tagged latest and version)
• Tested(only tested sqlite)
  • Binaries
    • linux_x86_64
    • linux_aarch64
    • linux_armv7
    • windows_x86_64
  • Docker images
    • linux_x86_64
    • linux_aarch64
    • linux_armv7

Note: The buildx workflow does not use the Dockerfile in the repo. It creates a Dockerfile that reuses the binary created by goreleaser. The docker image created is also ran as a non-root user, so could be a breaking change(I beleive you can just fun it with -u root to continue running as root).

Invalidates #278
Related Issues: #263 #260

Closes #254 #267 #238 #273 #278

[fmartingr]

Holy molly @n8225 this sounds awesome! I can't thank you enough for all the work you've done, it's very well put and easy to use for us maintaners. Amazing.

It seems that the linter is giving quite a few errors already in your examples (in master), I will fix those after this is merged so we can have green PRs for any old/new contribution.

Again, thanks a lot.

[n8225]

I still need to implement deleting old docker images, but other than that this PR is ready to go.
FYSA with 5 docker versions(3 architectures) I'm using .1524gb of shared storage.

[fmartingr]

Thanks a lot for your contribution @n8225, this will save a lot of time in reviews and releases. The cleanup can be done in a later step as well since .5GB of space can hold a few releases.

[fmartingr]

Awesome work @n8225!

I'm going to merge it and I will try the workflows once I merge some bugfixes.

Thanks!