fix: resolving duplicate outbound address names for acl rules

[imprateeksh]

Description

This is to fix the issue seen as duplicate names for acl rule. Refer issue-4501

Types of changes in this PR

No release required

• Examples or tests (addition or updates of examples or tests)
• Documentation update
• CI-related update (pipeline, etc.)
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Release required

• Bug fix (patch release (x.x.X): Change that fixes an issue and is compatible with earlier versions)
• New feature (minor release (x.X.x): Change that adds functionality and is compatible with earlier versions)
• Breaking change (major release (X.x.x): Change that is likely incompatible with previous versions)

Release notes content

• Resolved duplicate ACL rule name seen for outbound rules.

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Checklist for reviewers

• If relevant, a test for the change is included or updated with this PR.
• If relevant, documentation for the change is included or updated with this PR.

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[terraform-ibm-modules-ops]

🎉 This PR is included in version 6.0.1 🎉

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