Release v1.9.1

[chuangw6]

Description
Release v1.9.1

• (fix):Pass full URI path to bucket.GetNameAndFilepathFromURI #2221
• Add the ability to skip unpacking the initial file system #2234
• chore: remove duplicate word in comments #2232
• docs(CHANGELOG.md): fix link to issue Add GitLab CI credentials helper #2040 #2228
• feat: disable cache-copy-layers in multistage builds; closes 2065 #2227
• bump cosign version so it can sign #2224
• fix(README.md): remove duplicate caching section #2223
• refactor: Make CLI argument names consistent #2084
• fix(KanikoDir): update DOCKER_CONFIG env when use custom kanikoDir #2202
• (fix):Pass full URI path to bucket.GetNameAndFilepathFromURI #2221
• Add the ability to skip unpacking the initial file system #2234
• chore: remove duplicate word in comments #2232
• docs(CHANGELOG.md): fix link to issue Add GitLab CI credentials helper #2040 #2228
• feat: disable cache-copy-layers in multistage builds; closes 2065 #2227
• bump cosign version so it can sign #2224
• fix(README.md): remove duplicate caching section #2223
• refactor: Make CLI argument names consistent #2084
• fix(KanikoDir): update DOCKER_CONFIG env when use custom kanikoDir #2202

Submitter Checklist

These are the criteria that every PR should meet, please check them off as you
review them:

• Includes unit tests
• Adds integration tests if needed.

See the contribution guide for more details.

Reviewer Notes

• The code flow looks good.
• Unit tests and or integration tests added.

Release Notes

Describe any changes here so maintainer can include it in the release notes, or delete this block.

None

[chuangw6]

@imjasonh Please take a look. Thanks!