[PR #7370/22c264ce backport][3.9] fix: Spelling error fixed

[patchback]

This is a backport of PR #7370 as merged into master (22c264c).

What do these changes do?

Fixes #7351

Are there changes in behavior for the user?

Related issue number

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt
  • The format is <Name> <Surname>.
  • Please keep alphabetical order, the file is sorted by names.
• Add a new news fragment into the CHANGES folder
  • name it <issue_id>.<type> for example (588.bugfix)
  • if you don't have an issue_id change it to the pr id after creating the pr
  • ensure type is one of the following:
    • .feature: Signifying a new feature.
    • .bugfix: Signifying a bug fix.
    • .doc: Signifying a documentation improvement.
    • .removal: Signifying a deprecation or removal of public API.
    • .misc: A ticket has been closed, but it is not of interest to users.
  • Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files."

[codecov]

Codecov Report

Merging #7372 (fefef59) into 3.9 (578d423) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##              3.9    #7372   +/-   ##
=======================================
  Coverage   97.27%   97.27%           
=======================================
  Files         107      107           
  Lines       31592    31592           
  Branches     4010     4010           
=======================================
  Hits        30732    30732           
  Misses        653      653           
  Partials      207      207           

Flag	Coverage Δ
CI-GHA	97.22% <ø> (ø)
OS-Linux	96.90% <ø> (ø)
OS-Windows	94.53% <ø> (ø)
OS-macOS	96.59% <ø> (ø)
Py-3.10.11	94.44% <ø> (ø)
Py-3.10.12	96.78% <ø> (ø)
Py-3.11.0	96.52% <ø> (ø)
Py-3.8.10	94.42% <ø> (ø)
Py-3.8.16	?
Py-3.8.17	96.72% <ø> (+0.12%)	⬆️
Py-3.9.13	94.42% <ø> (ø)
Py-3.9.17	96.75% <ø> (ø)
Py-pypy7.3.11	94.14% <ø> (ø)
VM-macos	96.59% <ø> (ø)
VM-ubuntu	96.90% <ø> (ø)
VM-windows	94.53% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
aiohttp/payload.py	95.90% <ø> (ø)

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