stream: move _stream_* to end-of-life

[bjohansebas]

So that in Node.js 26 these modules are no longer there, and are now internal to Node.js only instead of public.

[nodejs-github-bot]

Review requested:

• @nodejs/streams
• @nodejs/userland-migrations

[bjohansebas]

cc: @nodejs/tsc since it’s an end-of-life deprecation

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.55%. Comparing base (60b9aaa) to head (685d817).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #60657   +/-   ##
=======================================
  Coverage   88.54%   88.55%           
=======================================
  Files         703      697    -6     
  Lines      208077   208035   -42     
  Branches    40082    40078    -4     
=======================================
- Hits       184252   184219   -33     
- Misses      15848    15850    +2     
+ Partials     7977     7966   -11     

Files with missing lines	Coverage Δ
lib/internal/main/mksnapshot.js	95.75% <ø> (-0.12%)	⬇️

... and 44 files with indirect coverage changes

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