Recognize planning errors when evaluating a build expression.

[mitchell-as]

CP-1148 State tool isn't handling errors from Evaluate queries

% ~/cli/build/state install language/golang:github.com/docker/cli --ts dynamic
█ Installing Package

Operating on project org/project, located at /path/to/project.

• Searching for packages in the ActiveState Catalog ✔ Found
• Resolving Dependencies x Failed
 x Could not plan build. Platform responded with:
  Failed to create build plan due to solve errors
  Request is invalid
  let.sources.dynamic_solve
  dynamic imports: get versions of language/golang:github.com/docker/cli: get versions: '<' not 
supported between instances of 'int' and 'str'.