fix: Fix missing tag for SSM parameter EGRESS_IP

[tony-griffin]

Ad-hoc quick fix

The demodjango-deploy/copilot/{service}/overrides/cfn.patches.yml file grants the service access to the SSM params that have the tag:

copilot-application': '__all__'

We need to add that tag to the EGRESS_IP SSM param in order for the copilot/{service}/manifest.yml to use the SSM parameter.

Each time an environment gets re-provisoned it was wiping the manually added tag and this breaks the codebase pipeline as thew web service depends on the EGRESS_IP SSM param

Deployment failure logs

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Checklist:

Title:

• Scope included as per conventional commits
• Ticket reference included (unless it's a quick out of ticket thing)

Description:

• Link to ticket included (unless it's a quick out of ticket thing)
• Includes tests (or an explanation for why it doesn't)
• Includes any applicable changes to the documentation in this code base
• Includes link(s) to any applicable changes to the documentation in the DBT Platform Documentation (can be to a pull request)

Tasks:

• Trigger the pull request regression tests for this branch and confirm that they are passing

[WillGibson]

Changed the scope to fix, because that's what it is, and (I think) chore does not get included in release notes.