[stubsabot] Bump fpdf2 to 2.7.6

Release: https://pypi.org/pypi/fpdf2/2.7.6
Homepage: https://py-pdf.github.io/fpdf2/
Repository: https://github.com/PyFPDF/fpdf2
Diff: py-pdf/fpdf2@2.7.4...2.7.6

Stubsabot analysis of the diff between the two releases:
 - 2 public Python files have been added: `fpdf/text_region.py`, `test/fonts/test_font_internals.py`.
 - 0 files included in typeshed's stubs have been deleted.
 - 23 files included in typeshed's stubs have been modified or renamed.
 - Total lines of Python code added: 3676.
 - Total lines of Python code deleted: 1373.

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- Leave this PR open (as a reminder, and to prevent stubsabot from opening another PR)
- Fix stubtest failures in another PR, then close this PR

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Author: stubsabot

stubs/fpdf2/METADATA.toml

@@ -1,4 +1,4 @@
-version = "2.7.4"
+version = "2.7.6"
 upstream_repository = "https://github.com/PyFPDF/fpdf2"
 requires = ["types-Pillow>=9.2.0"]