Fix passing zookeeper memory to etcd

[lidongze0629]

Fixes #110

[sighingnow]

Nice fix!

[siyuan0322]

👍

[codecov-io]

Codecov Report

Merging #111 (7fe11ca) into main (15ce6fd) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #111   +/-   ##
=======================================
  Coverage   78.14%   78.14%           
=======================================
  Files          50       50           
  Lines        4558     4558           
=======================================
  Hits         3562     3562           
  Misses        996      996           

Impacted Files	Coverage Δ
python/graphscope/client/session.py	72.75% <ø> (ø)
...n/graphscope/deploy/kubernetes/resource_builder.py	60.65% <ø> (ø)
python/graphscope/config.py	100.00% <100.00%> (ø)

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