bump localnet memory (#1888)

Signed-off-by: Itai Segall <itai.segall@digitalasset.com>

Author: isegall-da

cluster/compose/localnet/resource-constraints.yaml

@@ -7,7 +7,10 @@ services:
   postgres:
     mem_limit: 2g
   canton:
-    mem_limit: 7g
+    # We upload all DARs from the validator at once, which pulls up memory usage.
+    # Until we either do that sequentially in localNet, or we get unvetting and stop
+    # uploading all versions, we need to allocate more memory than otherwise needed.
+    mem_limit: 10g
     environment:
       _JAVA_OPTIONS: "-XX:-UseCompressedOops -Xms512m -Xmx4096m"
   splice: