add a memory vs cache size check to avoid container getting killed

details: https://github.com/ethereum/go-ethereum/issues/19859

Signed-off-by: Jakub Sokołowski <jakub@status.im>

tasks/checks.yml

@@ -0,0 +1,6 @@
+---
+- name: Verify memory and cache sizes
+  assert:
+    that:
+      - cont_mem_limit > geth_cache
+    fail_msg: 'Memory limit cant be lower than cache'

tasks/main.yml

@@ -1,4 +1,5 @@
 ---
+- import_tasks: checks.yml
 - import_tasks: generate.yml
 - import_tasks: trusted_peers.yml
 - import_tasks: container.yml