fix: ensure maps of enums are generated properly

[michaelhtm]

Description of changes:
Currently, generating Maps of Enums was error prone. Instead of generating them.
With these changes, we ensure map[string]Enum are generated properly.

Sample:

f0valf28f0f0 := map[string]svcsdktypes.GlueRecordType{}
for f0valf28f0f0key, f0valf28f0f0valiter := range f0valiter.JDBCConnectorSource.AdditionalOptions.DataTypeMapping {
    var f0valf28f0f0val string
    f0valf28f0f0val = string(*f0valf28f0f0valiter)
    f0valf28f0f0[f0valf28f0f0key] = svcsdktypes.GlueRecordType(f0valf28f0f0val)
}

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

[michaelhtm]

/test s3-controller-test
/test efs-controller-test

[michaelhtm]

/test s3-controller-test

[rushmash91]

can we have a description of the issue, small snippets from glue?

[rushmash91]

/lgtm

[ack-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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This pull-request has been approved by: michaelhtm, rushmash91

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[michaelhtm]

/test dynamodb-controller-test

[ack-prow]

@michaelhtm: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
verify-attribution	953d030	link	false	/test verify-attribution
s3-olm-test	953d030	link	false	/test s3-olm-test

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[michaelhtm]

/test dynamodb-controller-test

[michaelhtm]

/test ec2-controller-test

[michaelhtm]

/test ec2-controller-test