Release 1.1.0 rc1

[jdolitsky]

Candidate commits for releasing 1.1.0-rc1 and switch back to dev and bump main branch version to 1.1.0-dev

This follows precedence similar to - https://github.com/opencontainers/distribution-spec/pull/274/commits

Tied to opencontainers/image-spec#953

34 PRs merged since last release (v1.0.0):

git log --oneline --merges 13bd083...1dfa4f4 | sed '$ d' |  \
  sed 's/.*Merge pull request //' | grep -v 'GHSA' | awk '{print "- " $1}' | uniq

• Updates GHA to versions and bumps Go to 1.17 #346
• Fix referrers API query string example #342
• Rename refers field to subject #344
• Registries MUST accept refers to unknown manifests #341
• Fix: #343 CI for gitvalidation #345
• Working group updates #339
• Working Group Proposal for Reference Types #335
• Add conformance test coverage for data field #318
• Fix pagination link for extensions #336
• clarify push manifest spec #333
• Add Brandon as maintainer #322
• spec.md: add note on legacy error codes #326
• Document manifest size limit recommendation #293
• Build conformance images with semver tags #313
• extension proposal #111
• Allow for rejection of image indexes with missing references #310
• ensure main is tracking v1.0 releases #309
• Add handling of unknown fields to conformance tests #311
• Bump github.com/opencontainers/image-spec from 1.0.1 to 1.0.2 in /conformance #308
• Update Makefile CI images to latest versions #304
• conformance: update dependencies etc #300
• Add conformance test verifying that cross-repo mount fails "open" #296
• Add test for automatic cross mounting behaviour #297
• Fix RFC link #295
• Fix order and links in spec TOC #294
• Add Jon Johnson as maintainer #288
• content-negotiation: bring over the table from Sebastiaan #226
• Move from Travis to GitHub Actions #284
• Add CODEOWNERS #286
• .tool: add a go.mod #285
• Add go.mod #283
• Allow for automatic content discovery for cross-mounting blobs #275
• Remove detail.md #280
• Define the representation for a tag name. #256

[sudo-bmitch]

Should this only track PR's since the 1.0.1 release, instead of the 1.0.0 release?

$ git log v1.0.1..HEAD --oneline --merges | sed '$ d' |    sed 's/.*Merge pull request //' | grep -v 'GHSA' | awk '{print "- " $1}' | uniq

[sudo-bmitch]

LGTM, my comment above only affects the PR description and not the change itself.

[jzelinskie]

LGTM

[mikebrow]

LGTM