(python3-streams) fix AU script

[TheCakeIsNaOH]

Description

The zip directory naming is inconsistent, this directly uses the filenames to find the appropriate license and copyright files.

Motivation and Context

Fixes #2555

How Has this Been Tested?

Tested on Win10 and in test env

Screenshot (if appropriate, usually isn't needed):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Migrated package (a package has been migrated from another repository)

Checklist:

• My code follows the code style of this repository.
• My change requires a change to documentation (this usually means the notes in the description of a package).
• I have updated the documentation accordingly (this usually means the notes in the description of a package).
• I have updated the package description and it is less than 4000 characters.
• All files are up to date with the latest Contributing Guidelines
• The added/modified package passed install/uninstall in the Chocolatey Test Environment(https://github.com/chocolatey-community/chocolatey-test-environment/). Note that we don't support the use of any other environment.
• The changes only affect a single package (not including meta package).

[AppVeyorBot]

✅ Package verification completed without issues. PR is now pending human review

[sigma67]

Is there any ETA on this PR? Since there has been no activity in 10 days

[sigma67]

@JPRuskin could you kindly review? it would be nice to have a package for 3.13 almost 2 months after its release

[rob-neobim]

@JPRuskin @sigma67 Just a +1 here. I'm not sure there's anything I can do to help except vote this PR up.

[rob-neobim]

@AdmiringWorm Perhaps you could review this?

[pauby]

@rob-neobim @sigma67 Please don't ping people on PR's. The community team will get to it whentime allows.