fix(ci): use older pip/setuptools to tolerate bogus -VERSION-

CHANGELOG.md

@@ -15,10 +15,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Fixed
 
 - Update list of Python versions for CI
-- Version dependency on `black` to avoid CI failures (for now, should reformat)
+- Version dependency on `black` in tests to avoid CI failures (for now, should reformat)
 - Fix a `flake8` error in `tests/test_converter.py`
-- Version dependency on `mypy` to avoid CI failures (for now, should fix)
+- Version dependency on `mypy` in tests to avoid CI failures (for now, should fix)
 - Correct `type: ignore` comment in `pdfplumber/image.py`
+- Version dependency on `pip` and `setuptools` in tests to avoid CI failures (for now, should *really* fix that bogus version string!)
 - `ValueError` when bmp images with 1 bit channel are decoded ([#773](https://github.com/pdfminer/pdfminer.six/issues/773))
 - `ValueError` when trying to decrypt empty metadata values ([#766](https://github.com/pdfminer/pdfminer.six/issues/766))
 - Sphinx errors during building of documentation ([#760](https://github.com/pdfminer/pdfminer.six/pull/760))

noxfile.py

@@ -37,6 +37,8 @@ def types(session):
 
 @nox.session(python=PYTHON_ALL_VERSIONS)
 def tests(session):
+    session.install("pip<23")
+    session.install("setuptools<58")
     session.install("-e", ".[dev]")
     session.run("pytest")