[EXP-35-236] sentry release tracking + custom tags

[mariuspod]

We can activate now sentry release tracking by passing a SENTRY_RELEASE env like so:

export SENTRY_RELEASE=$(git rev-parse --short HEAD)
https://docs.sentry.io/product/releases/

if this is set to a value sentry will show it under the Releases section which can be further filtered by the environment.

The environment (previously ENV) has been replaced in favor of sentry's default SENTRY_ENVIRONMENT
https://docs.sentry.io/platforms/python/configuration/options/#common-options

Also changed some custom tags like discussed with Bob.

[linear]

EXP-35 [EXP-35-236] sentry release tracking + custom tags

We can activate now sentry release tracking by passing a SENTRY_RELEASE env like so:

export SENTRY_RELEASE=$(git rev-parse --short HEAD)
https://docs.sentry.io/product/releases/

if this is set to a value sentry will show it under the Releases section which can be further filtered by the environment.

The environment (previously ENV) has been replaced in favor of sentry's default SENTRY_ENVIRONMENT
https://docs.sentry.io/platforms/python/configuration/options/#common-options

Also changed some custom tags like discussed with Bob.

[BobTheBuidler]

Straightforward changes, LGTM