Build a slim image without Python nor spreaper #1671

Job	Run time
Build Reaper	5m 9s
Build Reaper	5m 5s
Build Reaper	5m 57s
Cassandra backend	0s
Cassandra backend	0s
Docker Image Tests	0s
Docker Image Tests	0s
Memory backends	0s
Memory backends	0s
HTTP Management	0s
HTTP Management	0s
Each DC Availability	0s
Each DC Availability	0s
Each DC Availability	0s
Sidecar	0s
Sidecar	0s
Sidecar	0s
Distributed tests	0s
Distributed tests	0s
Distributed tests	0s
Flapping reapers	0s
Flapping reapers	0s
Flapping reapers	0s
Release Reaper	0s
Release Reaper	0s
Release Reaper	0s
Docker Image Tests (cassandra, docker)	35m 34s
Cassandra backend (binary:3.0.25, cassandra, ccm)	20m 33s
Memory backends (binary:3.0.25, local, ccm)	16m 18s
HTTP Management (binary:4.0.6, ccm, http-api, 1, 1)	24m 48s
Cassandra backend (binary:3.11.16, cassandra, ccm)	22m 25s
Memory backends (binary:3.11.16, local, ccm)	20m 15s
Cassandra backend (binary:4.0.6, cassandra, ccm)	25m 16s
Memory backends (binary:4.0.6, local, ccm)	21m 46s
HTTP Management (binary:3.11.16, ccm, http-api, 1, 1)	32m 36s
	3h 55m 42s

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