Migration to version 19.0

[OCA-git-bot]

Todo

https://github.com/OCA/maintainer-tools/wiki/Migration-to-version-19.0

Modules to migrate

• ebill_postfinance
• ebill_postfinance_customer_free_ref
• ebill_postfinance_stock
• l10n_ch_account_tags
• l10n_ch_adr_report

Missing module? Check https://github.com/OCA/maintainer-tools/wiki/%5BFAQ%5D-Missing-modules-in-migration-issue-list