Create process to automate translation updates

### Environment

self-hosted ([https://develop.sentry.dev/self-hosted/](https://develop.sentry.dev/self-hosted/))

### Version

21.7.0

### Product Area

Other

### Link

*No response*

### cDSN

*No response*

### Steps to Reproduce

I have joined the translation team to contribute. But I can see [https://github.com/getsentry/sentry/tree/master/src/sentry/locale](https://github.com/getsentry/sentry/tree/master/src/sentry/locale), the last commit is almost 2 years. A lot of translations is updated at transifex, but not on self-hosted Sentry repo. Could you help updating the translations? Or could I make a PR?

### Expected Result

Updating latest translations from transifex

### Actual Result

Updating latest translations from transifex