fix: cancelling readable stream

[rturnq]

Description

Prevents error when readable stream from toReadable is cancelled externally

Checklist:

• I have read the CONTRIBUTING document and have signed (or will sign) the CLA.
• I have updated/added documentation affected by my changes.
• I have added tests to cover my changes.

[changeset-bot]

🦋 Changeset detected

Latest commit: 993cebb

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
marko	Patch
@marko/runtime-tags	Patch

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 22 lines in your changes missing coverage. Please review.

Project coverage is 87.41%. Comparing base (2847b81) to head (993cebb).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/runtime-tags/src/html/template.ts	0.00%	12 Missing ⚠️
...ages/runtime-class/src/runtime/html/AsyncStream.js	0.00%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2634      +/-   ##
==========================================
- Coverage   87.44%   87.41%   -0.04%     
==========================================
  Files         360      360              
  Lines       42483    42501      +18     
  Branches     2972     2972              
==========================================
  Hits        37151    37151              
- Misses       5304     5322      +18     
  Partials       28       28              

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