Use forked awspolicyequivalence

[YakDriver]

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Relates #21968
Relates jen20/awspolicyequivalence#10 (comment)
Relates hashicorp/awspolicyequivalence#1

Output from acceptance testing:

% make testacc TESTS=TestAccKMSKey PKG=kms
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/kms/... -v -count 1 -parallel 20 -run='TestAccKMSKey' -timeout 180m
--- PASS: TestAccKMSKey_disappears (21.59s)
--- PASS: TestAccKMSKey_asymmetricKey (24.46s)
--- PASS: TestAccKMSKeyDataSource_basic (25.53s)
--- PASS: TestAccKMSKeyDataSource_multiRegionConfiguration (25.75s)
--- PASS: TestAccKMSKey_basic (27.18s)
--- PASS: TestAccKMSKey_multiRegion (27.30s)
--- PASS: TestAccKMSKeyDataSource_grantToken (31.58s)
--- PASS: TestAccKMSKey_Policy_iamRole (37.96s)
--- PASS: TestAccKMSKey_Policy_basic (42.88s)
--- PASS: TestAccKMSKey_Policy_bypassUpdate (43.10s)
--- PASS: TestAccKMSKey_Policy_iamServiceLinkedRole (48.45s)
--- PASS: TestAccKMSKey_Policy_iamRoleOrder (59.88s)
--- PASS: TestAccKMSKey_tags (68.97s)
--- PASS: TestAccKMSKey_Policy_bypass (150.81s)
--- PASS: TestAccKMSKey_isEnabled (171.06s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/kms	172.484s

[github-actions]

This functionality has been released in v3.69.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

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