chore(deps): bump sentry-relay from 0.8.44 to 0.8.56

Bumps sentry-relay from 0.8.44 to 0.8.56.

---
updated-dependencies:
- dependency-name: sentry-relay
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -25,7 +25,7 @@ redis==4.3.4
 sentry-arroyo==2.17.1
 sentry-kafka-schemas==0.1.67
 sentry-redis-tools==0.3.0
-sentry-relay==0.8.44
+sentry-relay==0.8.56
 sentry-sdk==1.40.5
 simplejson==3.17.6
 snuba-sdk==2.0.32