Env dedup

[achauhan-scc]

Description

SDK will always try to update the latest version of an existing environment, if try to create a new version only in case of failure. Note - In case of Registry, SDK will continue to auto increment the version, due to temp folder error from API. Testing Results

Host Type	Build Type	Change	Expected Result	Actual Result
Workspace	Image	No environment Exists	New environment created with version "1"	Env created with version 1
Workspace	Image	Only description change	version "1" description updated	No new environment & desc updated
Workspace	Image	Image change	New environment with version "2" & new image	Version 2 created
Workspace	Build Context	No environment Exists	New environment created with version "1"	Env created with version 1
Workspace	Build Context	requirement.txt update	New environment with version "2"	Version 2 created
Workspace	Build Context	Only description change	No new environment & version "2" updated	Version 2 updated
Workspace	Custom Conda	No environment Exists	New environment created with version "1"	Env created with version 1
Workspace	Custom Conda	conda yaml update	New environment with version "2"	Version 2 created
Workspace	Custom Conda	Only description change	No new environment & version "2" updated	Version 2 updated
Registry	Image	No environment Exists	New environment created with version "1"	Env created with version 1
Registry	Image	Only description change	New environment created	New environment created
Registry	Image	Image change	New environment created	New environment created
Registry	Build Context	No environment Exists	New environment created with version "1"	Env created with version 1
Registry	Build Context	requirement.txt update	New environment with version "2"	Version 2 created
Registry	Build Context	Only description change	New environment created	New environment created
Registry	Custom Conda	No environment Exists	New environment created with version "1"	Env created with version 1
Registry	Custom Conda	conda yaml update	New environment created	Version 2 created
Registry	Custom Conda	Only description change	New environment created	New environment created

All SDK Contribution checklist:

• [ ] The pull request does not introduce [breaking changes]
• [ ] CHANGELOG is updated for new features, bug fixes or other significant changes.
• [ ] I have read the contribution guidelines.

General Guidelines and Best Practices

• [ ] Title of the pull request is clear and informative.
• [ ] There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For more information on cleaning up the commits in your PR, see this page.

Testing Guidelines

• [ ] Pull request includes test coverage for the included changes.

[azure-sdk]

API change check

APIView has identified API level changes in this PR and created following API reviews.

azure-ai-ml