feat: better cache adapter error handling

[wschurman]

Why

The cache adapter equivalent to #101. Redis/ioredis doesn't throw any specific errors with codes, just a single error type ReplyError with a message (https://github.com/luin/ioredis#error-handling) so we just assume that all redis errors are transient.

How

Add new error class and error code, wrap ioredis calls, add test.

Test Plan

Run test.

[codecov]

Codecov Report

Merging #102 (76ecb64) into master (5208aee) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #102      +/-   ##
==========================================
+ Coverage   94.91%   94.95%   +0.04%     
==========================================
  Files          65       66       +1     
  Lines        1612     1626      +14     
  Branches      196      196              
==========================================
+ Hits         1530     1544      +14     
  Misses         80       80              
  Partials        2        2              

Flag	Coverage Δ
integration	94.95% <100.00%> (+0.04%)	⬆️
unittest	94.95% <100.00%> (+0.04%)	⬆️

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Impacted Files	Coverage Δ
...ntity-cache-adapter-redis/src/RedisCacheAdapter.ts	100.00% <100.00%> (ø)
...he-adapter-redis/src/errors/wrapNativeRedisCall.ts	100.00% <100.00%> (ø)
...-adapter-knex/src/PostgresEntityDatabaseAdapter.ts	100.00% <100.00%> (ø)
...-adapter-knex/src/errors/wrapNativePostgresCall.ts	100.00% <100.00%> (ø)
packages/entity/src/errors/EntityError.ts	100.00% <100.00%> (ø)

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