feat: update NetHSM api client

[nponsard]

This PR updates the NetHSM api client to the latest specification with an updated code generator.

Changes

• [x] Update nethsm-api.yml file
• [x] Update /pynitrokey/nethsm/client folder
• [x] Update api calls in /pynitrokey/nethsm/init.py

Checklist

Make sure to run make check and make fix before creating a PR, otherwise the CI will fail.

• [x] tested with Python3.9
• [ ] signed commits
• [x] updated documentation (e.g. parameter description, inline doc, docs.nitrokey)
• [x] added labels

Progress :

• [x] add-key
• [x] add-key-tag
• [x] add-operator-tag
• [x] add-user
• [x] backup
• [x] cancel-update
• [x] commit-update
• [x] csr
• [x] decrypt
• [x] delete-certificate
• [x] delete-key
• [x] delete-key-tag
• [x] delete-operator-tag
• [x] delete-user
• [x] encrypt
• [x] factory-reset
• [x] generate-key
• [x] generate-tls-key
• [x] get-certificate
• [x] get-config
• [x] get-key
• [x] get-user
• [x] info
• [x] list-keys
• [x] list-operator-tags
• [x] list-users
• [x] lock
• [x] metrics
• [x] provision
• [x] random
• [x] reboot
• [x] restore
• [x] set-backup-passphrase
• [x] set-certificate
• [x] set-logging-config
• [x] set-network-config
• [x] set-passphrase
• [x] set-time
• [x] set-unattended-boot
• [x] set-unlock-passphrase
• [x] shutdown
• [x] sign
• [x] state
• [x] system-info
• [x] unlock
• [x] update