Fix suspendMemoizeF

[vlovgr]

The suspendMemoizeF function was previously not capturing the memoization effect.

[codecov]

Codecov Report

Merging #145 into master will decrease coverage by 0.26%.
The diff coverage is 50%.

@@            Coverage Diff             @@
##           master     #145      +/-   ##
==========================================
- Coverage   95.38%   95.11%   -0.27%     
==========================================
  Files          43       43              
  Lines         693      696       +3     
  Branches        5        5              
==========================================
+ Hits          661      662       +1     
- Misses         32       34       +2

Impacted Files	Coverage Δ
...ared/src/main/scala/ciris/cats/effect/syntax.scala	60% <50%> (-40%)	⬇️

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