ci: Switch e2e test to self-hosted repo #19798

Job	Run time
detect what files changed	7s
pre-commit hooks	33s
Linting - Rust	2m 10s
mypy typing	1m 15s
Dataset Config Validation	21s
Build snuba CI image	10m 5s
Publish Snuba to DockerHub	0s
validate-devservices-config	36s
Front end tests for snuba admin	1m 13s
self-hosted-end-to-end	1s
Tests on multiple clickhouse versions (23.8.11.29.altinitystable)	13m 35s
Tests on multiple clickhouse versions (24.3.5.47.altinitystable)	13m 36s
sentry (0)	4m 49s
Tests and code coverage (test)	13m 35s
sentry (1)	4m 59s
Tests and code coverage (test_rust)	4m 48s
Tests and code coverage (test_distributed)	23m 37s
sentry (2)	5m 34s
Tests and code coverage (test_distributed_migrations)	3m 7s
sentry (3)	4m 55s
	1h 48m 56s

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