Skopeo - v1.12.0

More template functions available in skopeo inspect --format
Adds new ways to supply trusted keys to skopeo standalone-verify.

Now requires Go 1.18.

• [CI:DOCS] Fix up language in README
• Add unit tests for tlsVerifyConfig's yaml.Unmarshaler
• Cirrus: Use human-readable CI VM Images
• [CI:BUILD] copr: fix el8 build and enable debuginfo
• [CI:BUILD] enable debuginfo for el8 copr builds
• Update to use, and benefit from, Go 1.18
• [CI:DOCS] Disable dependabot
• Renovate: c/common rule moved to defaults
• [CI:BUILD] Packit: initial enablement
• Replace gopkg.in/check.v1 by github.com/stretchr/testify/suite/
• Corrected typo in skopeo-sync and updated description
• Fix tabelating output in (skopeo inspect --format)
• Use common library reporter
• Fix formatting of inspect examples
• Use io.WriteString
• Factor out the output of data in (skopeo inspect)
• Simplify inspectOptions.writeOutput a bit more
• Cirrus: Update CI VM images
• Make the installation instructions more prominent in README.md
• [CI:BUILD] Packit: trigger builds on commit to main branch
• systemtests: Fix 040-local-registry-auth about XDG_RUNTIME_DIR
• Verify signatures from a trust store
• Rename argument. Only use any with public key file. Double check fingerprint is in public key file.
• Use multiple fingerprint function Allow comma separated fingerprint list
• Avoid use of a deprecated capability.NewPid
• Fix error handling of signature.NewEphemeralGPGSigningMechanism
• Cross-link the top-level and subcommand option lists
• Use golangci-lint instead of golint
• Add (make tools) to install (for now only) golangci-lint, use it in Cirrus