fix(AWS EventBridge): Allow intrinsic functions in pattern

[bboure]

Fixes #9293

allows for event bridge patterns using intrinsic functions, like this one:

    events:
      - eventBridge:
          pattern:
            account:
              - !Sub ${AWS::AccountId}

Note: This will only work when using CloudFormtion

eventBridge:
    useCloudFormation: true

[codecov]

Codecov Report

Merging #10120 (cdd7f26) into master (a8d1713) will decrease coverage by 0.88%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master   #10120      +/-   ##
==========================================
- Coverage   86.16%   85.27%   -0.89%     
==========================================
  Files         329      335       +6     
  Lines       13057    13687     +630     
==========================================
+ Hits        11250    11671     +421     
- Misses       1807     2016     +209     

Impacted Files	Coverage Δ
...ns/aws/package/compile/events/eventBridge/index.js	98.34% <100.00%> (-0.04%)	⬇️
lib/plugins/aws/metrics.js	57.97% <0.00%> (-42.03%)	⬇️
lib/classes/CLI.js	60.00% <0.00%> (-31.43%)	⬇️
lib/plugins/print.js	71.21% <0.00%> (-28.79%)	⬇️
lib/plugins/aws/deployList.js	71.42% <0.00%> (-20.24%)	⬇️
lib/cli/handle-error.js	81.08% <0.00%> (-7.58%)	⬇️
lib/plugins/standalone.js	40.74% <0.00%> (-5.78%)	⬇️
lib/utils/processBackendNotificationRequest.js	44.44% <0.00%> (-5.56%)	⬇️
lib/cli/interactive-setup/deploy.js	86.15% <0.00%> (-5.08%)	⬇️
lib/cli/interactive-setup/utils.js	84.31% <0.00%> (-4.82%)	⬇️
... and 83 more

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[pgrzesik]

Thank you @bboure, looks great 🙇