refactor RedisKvs.scan result parsing

[uriesk]

Follow up to #1714

just makes the

const items = Array.from(data, (x, k) => k % 2 ? undefined : [x, data[k + 1]]).filter((x) => x);
const parsedItems: KVS<T> = items.reduce((acc, [key, strVal]) => {
  return {
    ...acc,
    [key]: this.mapKeysGet(JSON.parse(strVal)),
  };
}, {} as KVS<T>);

more readable.
I forgot to do that in the old commit.

[codecov]

Codecov Report

Base: 68.98% // Head: 68.96% // Decreases project coverage by -0.01% ⚠️

Coverage data is based on head (e10d600) compared to base (6fb1e71).
Patch coverage: 75.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1720      +/-   ##
==========================================
- Coverage   68.98%   68.96%   -0.02%     
==========================================
  Files          26       26              
  Lines        2431     2436       +5     
  Branches      477      477              
==========================================
+ Hits         1677     1680       +3     
- Misses        589      591       +2     
  Partials      165      165              

Impacted Files	Coverage Δ
src/util/RedisKvs.ts	73.91% <75.00%> (-0.53%)	⬇️

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