Bump version to 0.26.0 #1170

Job	Run time
Check coding standards	29s
Run tests (Ubuntu, 3.8)	1m 32s
Run tests (Ubuntu, 3.9)	1m 34s
Run tests (Ubuntu, 3.10)	1m 34s
Run tests (Ubuntu, 3.11)	1m 32s
Run tests (Ubuntu, 3.12)	1m 33s
Run tests (MacOS, 3.8)	1m 33s
Run tests (MacOS, 3.9)	1m 29s
Run tests (MacOS, 3.10)	1m 34s
Run tests (MacOS, 3.11)	1m 18s
Run tests (MacOS, 3.12)	1m 27s
Run tests (Windows, 3.9)	1m 19s
Run tests (Windows, 3.10)	1m 9s
Run tests (Windows, 3.11)	1m 17s
Run tests (Windows, 3.12)	1m 17s
Build distribution	0s
Upload release to PyPI	0s
Sign the Python 🐍 distribution 📦 with Sigstore and upload them to GitHub Release	0s
Upload homebrew formula	0s
	20m 37s

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