Release Shards 0.17.0

[straight-shoota]

Release preparation

1. [x] Start preparing changelog and release notes
2. [x] Publish release PR draft (https://github.com/crystal-lang/shards/pull/549)
   • It should be populated with updates to CHANGELOG.md, VERSION, and shard.yml.

Release process

1. [x] Finalize the release PR
   • Make sure all changes are mentioned in the changelog
   • Check release date
   • Build man files with the release date: $ make clean docs SOURCE_DATE_EPOCH=$(gdate -d "YYYY-MM-DD" +"%s")
   • Un-draft the PR
2. [x] Smoke test with test-ecosystem
   • Run Test Crystal & Shards Workflow with the release branch as shards_branch.
3. [x] Merge the release PR
4. [x] Tag & annotate the commit with the changelog using v<M.m.p> pattern as {version}
   • git tag -s -a -m v$VERSION v$VERSION
5. [x] Publish Github release (https://github.com/crystal-lang/shards/releases/new)
   • Copy the changelog section as description
6. [x] Close milestone (https://github.com/crystal-lang/shards/milestones)

Post-release

1. [ ] Increment VERSION file to the next minor and -dev suffix
2. [x] Update distribution-scripts (https://github.com/crystal-lang/distribution-scripts/pull/184)
   • Edit linux/Makefile
   • Edit omnibus/config/software/shards.rb
3. [x] Update https://github.com/crystal-lang/crystal (https://github.com/crystal-lang/crystal/pull/11930)
   • Edit .github/workflows/win.yml
4. [x] Submit a PR to update the homebrew formula in https://github.com/Homebrew/homebrew-core/blob/master/Formula/crystal.rb . Or do it on Crystal release.
5. [ ] Perform uncomment/todos left in the repo