test: Make test-all auto remove docker image

Author: mendess

Makefile

@@ -11,10 +11,10 @@ test-fast: keys
 
 run-test-servers:
 	cd ci && docker build -t test_suite:latest . && cd ..
-	docker run -d -p 4200:4200 -p 4201:4201 -p 4202:4202 -p 4203:4203 -p 4204:4204 -p 4205:4205 -p 4206:4206  --name socketio_test test_suite:latest
+	docker run --rm -d -p 4200:4200 -p 4201:4201 -p 4202:4202 -p 4203:4203 -p 4204:4204 -p 4205:4205 -p 4206:4206  --name socketio_test test_suite:latest
 
 test-all: keys run-test-servers
-	@cargo test --verbose --all-features
+	-cargo test --verbose --all-features
 	docker stop socketio_test
 
 clippy: