fix(efs): client mount permissions for EFS filesystem are not permitted by default (under feature flag)

[mazyu36]

WIP

Cannot rerun following integ tests:

• integ.efs-transition.ts (fixed in fix(efs): cannot run an integ test when transitionToArchivePolicy is specified and throughputMode is undefined #33713)
• integ.efs.permission.js
• integ.bucket-deployment.js

Issue # (if applicable)

Closes #33669.

Reason for this change

Description of changes

Describe any new or updated permissions being added

Description of how you validated changes

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

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

[aws-cdk-automation]

The pull request linter fails with the following errors:

❌ Fixes must contain a change to an integration test file and the resulting snapshot.

If you believe this pull request should receive an exemption, please comment and provide a justification. A comment requesting an exemption should contain the text Exemption Request. Additionally, if clarification is needed, add Clarification Request to a comment.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.37%. Comparing base (7fe033a) to head (2df9aab).
Report is 178 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #33671   +/-   ##
=======================================
  Coverage   82.37%   82.37%           
=======================================
  Files         120      120           
  Lines        6933     6933           
  Branches     1169     1169           
=======================================
  Hits         5711     5711           
  Misses       1119     1119           
  Partials      103      103           

Flag	Coverage Δ
suite.unit	85.26% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
packages/aws-cdk	∅ <ø> (∅)
packages/aws-cdk-lib/core	85.26% <ø> (ø)

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[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 2df9aab
• Result: FAILED
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[aws-cdk-automation]

This PR cannot be merged because it has conflicts. Please resolve them. The PR will be considered stale and closed if it remains in an unmergeable state.

[aws-cdk-automation]

This PR cannot be merged because it has conflicts. Please resolve them. The PR will be considered stale and closed if it remains in an unmergeable state.

[aws-cdk-automation]

This PR cannot be merged because it has conflicts. Please resolve them. The PR will be considered stale and closed if it remains in an unmergeable state.

[aws-cdk-automation]

This PR has been in the CHANGES REQUESTED state for 3 weeks, and looks abandoned. Note that PRs with failing linting check or builds are not reviewed, please ensure your build is passing

To prevent automatic closure:

• Resume work on the PR
• OR request an exemption by adding a comment containing 'Exemption Request' with justification e.x "Exemption Request: "
• OR request clarification by adding a comment containing 'Clarification Request' with a question e.x "Clarification Request: "

This PR will automatically close in 14 days if no action is taken.

[aws-cdk-automation]

This PR has been deemed to be abandoned, and will be automatically closed. Please create a new PR for these changes if you think this decision has been made in error.

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