fix(analytics): personalize typo

[tannerabread]

fixes typo for Cache prefix for personalize helper

Description of changes

fixes typo for Cache prefix for personalize helper

Issue #, if available

Description of how you validated changes

Checklist

• PR description included

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[israx]

lgtm after confirming this is for internal use only

[codecov-commenter]

Codecov Report

Merging #10965 (ff313da) into main (f6dfaac) will increase coverage by 0.01%.
The diff coverage is 100.00%.

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@@            Coverage Diff             @@
##             main   #10965      +/-   ##
==========================================
+ Coverage   81.54%   81.55%   +0.01%     
==========================================
  Files         198      198              
  Lines       19610    19610              
  Branches     4237     4237              
==========================================
+ Hits        15991    15993       +2     
+ Misses       3329     3327       -2     
  Partials      290      290              

Impacted Files	Coverage Δ
...ders/AmazonPersonalizeHelper/SessionInfoManager.ts	88.88% <100.00%> (ø)
...kages/amazon-cognito-identity-js/src/BigInteger.js	89.71% <0.00%> (+0.40%)	⬆️

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