`Internationaler Frauentag` missing for German MV

[mblumtritt]

The Internationaler Frauentag is a bank holiday in Germany not only in Berlin but since 2023 also in Mecklenburg-Vorpommern.

This definition is missing.

Found in German wikipedia

[jiveeee]

Yes. would you please update this missing holiday for Mecklenburg-Vorpommern? I appreciate it. :)

[dennisvandehoef]

This one can be closed, Was done in #245