B fix ssm patching manager to set computed value as new

[stromp]

Description

#33565 introduced a bug where the json value was not recalculated when the configuration changed. This PR address this. And adds a test to prevent a regression next time

Relations

Relates #33565

Output from Acceptance Testing

% ❯ make testacc TESTS=TestAccSSMPatchBaseline_basic PKG=ssm
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/ssm/... -v -count 1 -parallel 20 -run='TestAccSSMPatchBaseline_basic'  -timeout 360m
=== RUN   TestAccSSMPatchBaseline_basic
=== PAUSE TestAccSSMPatchBaseline_basic
=== CONT  TestAccSSMPatchBaseline_basic
--- PASS: TestAccSSMPatchBaseline_basic (18.35s)
PASS
ok      github.com/hashicorp/terraform-provider-aws/internal/service/ssm        18.456s
...

[github-actions]

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[ewbankkit]

LGTM 🚀.

% make testacc TESTARGS='-run=TestAccSSMPatchBaseline_' PKG=ssm ACCTEST_PARALLELISM=2
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/ssm/... -v -count 1 -parallel 2  -run=TestAccSSMPatchBaseline_ -timeout 360m
=== RUN   TestAccSSMPatchBaseline_basic
=== PAUSE TestAccSSMPatchBaseline_basic
=== RUN   TestAccSSMPatchBaseline_tags
=== PAUSE TestAccSSMPatchBaseline_tags
=== RUN   TestAccSSMPatchBaseline_disappears
=== PAUSE TestAccSSMPatchBaseline_disappears
=== RUN   TestAccSSMPatchBaseline_operatingSystem
=== PAUSE TestAccSSMPatchBaseline_operatingSystem
=== RUN   TestAccSSMPatchBaseline_approveUntilDateParam
=== PAUSE TestAccSSMPatchBaseline_approveUntilDateParam
=== RUN   TestAccSSMPatchBaseline_sources
=== PAUSE TestAccSSMPatchBaseline_sources
=== RUN   TestAccSSMPatchBaseline_approvedPatchesNonSec
=== PAUSE TestAccSSMPatchBaseline_approvedPatchesNonSec
=== RUN   TestAccSSMPatchBaseline_rejectPatchesAction
=== PAUSE TestAccSSMPatchBaseline_rejectPatchesAction
=== CONT  TestAccSSMPatchBaseline_basic
=== CONT  TestAccSSMPatchBaseline_rejectPatchesAction
--- PASS: TestAccSSMPatchBaseline_rejectPatchesAction (23.97s)
=== CONT  TestAccSSMPatchBaseline_approveUntilDateParam
--- PASS: TestAccSSMPatchBaseline_basic (38.16s)
=== CONT  TestAccSSMPatchBaseline_approvedPatchesNonSec
--- PASS: TestAccSSMPatchBaseline_approveUntilDateParam (35.37s)
=== CONT  TestAccSSMPatchBaseline_sources
--- PASS: TestAccSSMPatchBaseline_approvedPatchesNonSec (21.44s)
=== CONT  TestAccSSMPatchBaseline_disappears
--- PASS: TestAccSSMPatchBaseline_disappears (19.97s)
=== CONT  TestAccSSMPatchBaseline_operatingSystem
--- PASS: TestAccSSMPatchBaseline_sources (38.83s)
=== CONT  TestAccSSMPatchBaseline_tags
--- PASS: TestAccSSMPatchBaseline_operatingSystem (42.31s)
--- PASS: TestAccSSMPatchBaseline_tags (54.18s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/ssm	163.551s

% make testacc TESTARGS='-run=TestAccSSM_serial' PKG=ssm ACCTEST_PARALLELISM=2
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/ssm/... -v -count 1 -parallel 2  -run=TestAccSSM_serial -timeout 360m
=== RUN   TestAccSSM_serial
=== PAUSE TestAccSSM_serial
=== CONT  TestAccSSM_serial
=== RUN   TestAccSSM_serial/DefaultPatchBaseline
=== RUN   TestAccSSM_serial/DefaultPatchBaseline/multiRegion
=== RUN   TestAccSSM_serial/DefaultPatchBaseline/basic
=== RUN   TestAccSSM_serial/DefaultPatchBaseline/patchBaselineARN
=== RUN   TestAccSSM_serial/DefaultPatchBaseline/deleteDefault
=== RUN   TestAccSSM_serial/DefaultPatchBaseline/update
=== RUN   TestAccSSM_serial/DefaultPatchBaseline/wrongOperatingSystem
=== RUN   TestAccSSM_serial/DefaultPatchBaseline/disappears
=== RUN   TestAccSSM_serial/DefaultPatchBaseline/otherOperatingSystem
=== RUN   TestAccSSM_serial/DefaultPatchBaseline/systemDefault
=== RUN   TestAccSSM_serial/PatchBaseline
=== RUN   TestAccSSM_serial/PatchBaseline/deleteDefault
--- PASS: TestAccSSM_serial (256.66s)
    --- PASS: TestAccSSM_serial/DefaultPatchBaseline (236.53s)
        --- PASS: TestAccSSM_serial/DefaultPatchBaseline/multiRegion (38.18s)
        --- PASS: TestAccSSM_serial/DefaultPatchBaseline/basic (25.54s)
        --- PASS: TestAccSSM_serial/DefaultPatchBaseline/patchBaselineARN (26.13s)
        --- PASS: TestAccSSM_serial/DefaultPatchBaseline/deleteDefault (24.68s)
        --- PASS: TestAccSSM_serial/DefaultPatchBaseline/update (45.85s)
        --- PASS: TestAccSSM_serial/DefaultPatchBaseline/wrongOperatingSystem (10.56s)
        --- PASS: TestAccSSM_serial/DefaultPatchBaseline/disappears (18.95s)
        --- PASS: TestAccSSM_serial/DefaultPatchBaseline/otherOperatingSystem (23.48s)
        --- PASS: TestAccSSM_serial/DefaultPatchBaseline/systemDefault (23.18s)
    --- PASS: TestAccSSM_serial/PatchBaseline (20.13s)
        --- PASS: TestAccSSM_serial/PatchBaseline/deleteDefault (20.13s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/ssm	268.898s

[ewbankkit]

@stromp Thanks for the contribution 🎉 👏.

[github-actions]

This functionality has been released in v5.36.0 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]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.