Embed sdk versions (#68)

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

---------

Co-authored-by: Bryce Lampe <bryce@pulumi.com>

sdk/go/dockerbuild/internal/pulumiUtilities.go

@@ -165,7 +165,7 @@ func callPlainInner(
 func PkgResourceDefaultOpts(opts []pulumi.ResourceOption) []pulumi.ResourceOption {
 	defaults := []pulumi.ResourceOption{}
 
-	version := SdkVersion
+	version := semver.MustParse("1.0.0-alpha.0+dev")
 	if !version.Equals(semver.Version{}) {
 		defaults = append(defaults, pulumi.Version(version.String()))
 	}
@@ -176,7 +176,7 @@ func PkgResourceDefaultOpts(opts []pulumi.ResourceOption) []pulumi.ResourceOptio
 func PkgInvokeDefaultOpts(opts []pulumi.InvokeOption) []pulumi.InvokeOption {
 	defaults := []pulumi.InvokeOption{}
 
-	version := SdkVersion
+	version := semver.MustParse("1.0.0-alpha.0+dev")
 	if !version.Equals(semver.Version{}) {
 		defaults = append(defaults, pulumi.Version(version.String()))
 	}