Replaced "CPU" with "Cpu" in Apprunner examples

[RyanFitzSimmonsAK]

Issue #, if available: Internal documentation feedback ticket (P424226904)

Description of changes: Apprunner models the "Cpu" parameter with title case, but our existing examples have the whole parameter capitalized.

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.42%. Comparing base (c4681b5) to head (70d3b38).
⚠️ Report is 405 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #10377      +/-   ##
===========================================
+ Coverage    93.39%   93.42%   +0.03%     
===========================================
  Files          210      211       +1     
  Lines        17052    17312     +260     
===========================================
+ Hits         15925    16174     +249     
- Misses        1127     1138      +11     

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