Bugfix/alternative package-id

[SimonErm]

Summary

This PR fixes an issue which occures while building a repo with workspaces.
Without this changes the builds fail with

[builder] unable to invoke layer creator
[builder] unable to contribute application layer
[builder] unable to fetch members
[builder] unable to parse: unable to parse workspace member [path+file:///workspace/services/example-store#0.1.0], missing `@`
[builder] ERROR: failed to build: exit status 1
ERROR: failed to build: executing lifecycle: failed with status code: 51

because if the folder of the workspace is named like the workspace-member the package-id is slightly different.
(Example 3 in https://doc.rust-lang.org/cargo/reference/pkgid-spec.html#example-specifications under Local packages )
An example for member with a different folder name and one example for a member with the same name as the folder:

  "workspace_members": [
    "path+file:///Users/jondoe/.../services/example-store#[email protected]",
    "path+file:///Users/jondoe/.../services/example-transform#0.1.0"
  ],

Use Cases

Fixing workspace builds

Checklist

• I have viewed, signed, and submitted the Contributor License Agreement.
• I have linked issue(s) that this PR should close using keywords or the Github UI (See docs)
• I have added an integration test, if necessary.
• I have reviewed the styleguide for guidance on my code quality.
• I'm happy with the commit history on this PR (I have rebased/squashed as needed).

[dmikusa]

Looks good. Thanks for raising this up & sending a PR!

Could you update this comment and include the additional condition? Something like ...

// parseWorkspaceMember parses a workspace member which can be in a few of different formats
//
//	pre-1.77: `package-name package-version (url)`, like `function 0.1.0 (path+file:///Users/dmikusa/Downloads/fn-rs)`
//	1.77+: 
//          - `url#package-name@package-version` like `path+file:///Users/dmikusa/Downloads/fn-rs#[email protected]`
//          - `url#version` for local packages like `path+file:///Users/jondoe/.../services/example-transform#0.1.0`
//
// The final directory is assumed to be the package name with the local package format.
//
// returns the package name, version, URL, and optional error in that order