chore: fix the inconsistent stream error log message

[itsoyou]

• fix the inconsistent stream error log message to contain the proper information instead of raising value error
• fix typo

[Copilot]

Pull request overview

This PR fixes a broken/inconsistent formatting string used when raising the “inconsistent stream” database setup error, and corrects a small typo in request helper docstrings used in tests.

Changes:

• Fix _INCONSISTENT_STREAM_ERROR to use valid %() mapping placeholders so formatting no longer raises a ValueError.
• Correct “pretenting” → “pretending” in make_request docstrings in test helpers.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
synapse/storage/util/sequence.py	Fixes mapping-style % placeholders in the inconsistent stream error message so it formats correctly with the provided dict.
tests/unittest.py	Fixes a typo in the make_request docstring parameter description.
tests/server.py	Fixes the same typo in the shared make_request docstring parameter description.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.12%. Comparing base (e9af5a2) to head (47df28f).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #238      +/-   ##
==========================================
- Coverage   80.13%   80.12%   -0.01%     
==========================================
  Files         500      500              
  Lines       71220    71220              
  Branches    10703    10703              
==========================================
- Hits        57069    57065       -4     
- Misses      10906    10910       +4     
  Partials     3245     3245              

Files with missing lines	Coverage Δ
synapse/storage/util/sequence.py	92.30% <ø> (ø)

... and 5 files with indirect coverage changes

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