fix: remove unused field from redis configuration

[wschurman]

Why

This was added in the initial commit ebe5ffd#diff-7060247da0b983e4354f340658d6c10fc547b357df02344a42921f6204399c22R19 but was never used. Only the cacheKeyVersion from each entity configuration is used.

In www we just put it in the prefix, which is sufficient and serves the same purpose:

const REDIS_CACHER_KEY_VERSION = 1;
const REDIS_CACHER_KEY_PREFIX = `v${REDIS_CACHER_KEY_VERSION}`;

How

Remove, tsc

Test Plan

CI

[codecov]

Codecov Report

Merging #213 (996a104) into main (3a00a43) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #213   +/-   ##
=======================================
  Coverage   95.55%   95.55%           
=======================================
  Files          79       79           
  Lines        2068     2068           
  Branches      279      279           
=======================================
  Hits         1976     1976           
  Misses         91       91           
  Partials        1        1           

Flag	Coverage Δ
integration	95.55% <ø> (ø)
unittest	95.55% <ø> (ø)

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Impacted Files	Coverage Δ
...tity-cache-adapter-redis/src/GenericRedisCacher.ts	100.00% <ø> (ø)