Part of https://github.com/pulumi/ci-mgmt/issues/915
Install pulumi in standard way
Use the same method as other providers to install the pulumi CLI.
- Lock the version of the CLI and therefore codegen for consistent build
results.
- Ensure the local language plugins are using by disabling ambient
plugins.
Enable respect schema version
Remove setting version at SDK build time
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Co-authored-by: Bryce Lampe <bryce@pulumi.com>
