ci: hand the changelog to the release workflow as an artifact

[vdusek]

Every beta and stable release has failed since 2026-08-17, at the Update CHANGELOG.md step, with no code change involved:

An error occurred trying to start process '.../node' ... Argument list too long

CHANGELOG.md crossed 128 KiB. The changelog was passed to the release workflow as a string input, the workflow handed it to an action via with: contents:, and the runner passes action inputs as environment variables - Linux caps a single environment string at MAX_ARG_STRLEN (32 pages = 131072 bytes). The generated changelog measured 131,410 bytes; the last green release squeezed in about 140 bytes under the limit.

Both release workflows now hand the changelog over as an artifact, which has no size limit: apify/actions#36 uploads it, apify/workflows#312 downloads it.

Blocked until apify/actions is released as v1.5.0, which is what the bumped pin refers to.

✍️ Drafted by Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.64%. Comparing base (3485535) to head (66a7bfe).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2168      +/-   ##
==========================================
+ Coverage   93.58%   93.64%   +0.05%     
==========================================
  Files         181      181              
  Lines       12758    12758              
==========================================
+ Hits        11940    11947       +7     
+ Misses        818      811       -7     

Flag	Coverage Δ
unit	93.64% <ø> (+0.05%)	⬆️

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