[skip changelog] Update release process

[silvanocerza]

Please check if the PR fulfills these requirements

• The PR has no duplicates (please search among the Pull Requests
  before creating one)
• The PR follows our contributing guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• UPGRADING.md has been updated with a migration guide (for breaking changes)

• What kind of change does this PR introduce?

Updates the process used to create new builds and releases.

• What is the current behavior?

We currently use goreleaser to create changelogs and new releases.

• What is the new behavior?

We ditch goreleaser, we use Task and different Docker containers to create dist files for different platforms.

• Does this PR introduce a breaking change, and is titled accordingly?

Nope.

• Other information:

None.

---

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[silvanocerza]

I just pushed another commit that changes the VERSION variable in the Taskfile.yml from snapshot to git-snapshot, we use that version string when running lib install using the --git-url or --zip-file flags to print the documentation version.

This is the snippet in question, it panics at line 69 since the split slice contains only one element. Fact is that we should not enter that if at all when running tests.

arduino-cli/cli/lib/install.go

Lines 64 to 75 in 7e55f9e

	if installFlags.zipPath || installFlags.gitURL {
	if !configuration.Settings.GetBool("library.enable_unsafe_install") {
	documentationURL := "https://arduino.github.io/arduino-cli/latest/configuration/#configuration-keys"
	if !strings.Contains(globals.VersionInfo.VersionString, "git") {
	split := strings.Split(globals.VersionInfo.VersionString, ".")
	documentationURL = fmt.Sprintf("https://arduino.github.io/arduino-cli/%s.%s/configuration/#configuration-keys", split[0], split[1])
	}
	feedback.Errorf("--git-url and --zip-path are disabled by default, for more information see: %v", documentationURL)
	os.Exit(errorcodes.ErrGeneric)
	}
	feedback.Print("--git-url and --zip-path flags allow installing untrusted files, use it at your own risk.")
	}

[per1234]

Great work Silvano! Very exciting to have a new build system in place.

I ran the "nightly" and "release" workflows in my fork with my Apple signing certificate and verified that the macOS signing/notarization system is all working fine.