Backport NET-4135 - Fix NodeMeta filtering Catalog List Services API (#18322)

[absolutelightning]

Backport

This PR is auto-generated from #18322 to be assessed for backporting due to the inclusion of the label backport/1.15.

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The person who merged in the original PR is:
@absolutelightning
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merge conflict error: unable to process merge commit: "91efd2c15e14d27f7317426f22a23ec1610e1088", automatic backport requires rebase workflow

The below text is copied from the body of the original PR.

---

Description

Fixed the working of filter query parameter in /v1/catalog/services API. Fixes - #17422

Testing & Reproduction steps

Followed this tutorial and setup workloads in K8s.
Did curl -

asheshvidyut@asheshvidyut-H2GX766V9T ~/consul (NET-4135) » curl -ks -G http://localhost:8500/v1/catalog/services --data-urlencode filter="NodeMeta[\"consul-network-segment\"] == \"\" and NodeMeta[\"consul-version\"] == \"1.17.0\"" | jq
{
  "consul": []
}
asheshvidyut@asheshvidyut-H2GX766V9T ~/consul (NET-4135) » curl -ks -G http://localhost:8500/v1/catalog/services --data-urlencode filter="NodeMeta[\"synthetic-node\"] == true" | jq
{
  "frontend": [],
  "frontend-sidecar-proxy": [],
  "nginx": [],
  "nginx-sidecar-proxy": [],
  "payments": [],
  "payments-sidecar-proxy": [],
  "postgres": [],
  "postgres-sidecar-proxy": [],
  "products-api": [],
  "products-api-sidecar-proxy": [],
  "public-api": [],
  "public-api-sidecar-proxy": []
}

PR Checklist

• updated test coverage
• external facing docs updated
• appropriate backport labels added
• not a security concern

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Overview of commits

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