Update version.txt

Merge pull request #361 from pymzml/MKoesters-patch-1

Update sphinx.yml

Merge pull request #360 from pymzml/MKoesters-patch-1

Update sphinx.yml

Merge pull request #359 from pymzml/rc/2.5.8

Update version.txt

Merge pull request #354 from pymzml/release/2.5.6

Update version.txt

Merge pull request #351 from valentin-petzold/fix_cd

new gh action to publish to pypi

Update cd.yml

Update version.txt

bump version to v2.5.2

bump version to 2.5.1