Add RestClient::Gone exception handling to return nil

[devin-ai-integration]

For fixing https://app.rollbar.com/a/NEXL-LTS/fix/item/entity-office/1805

Added RestClient::Gone (HTTP 410) to the existing rescue clause in HttpClient#post that returns nil for API errors. This change aligns with the current handling of RestClient::NotFound (404) and RestClient::UnprocessableEntity (422) errors and resolves a rollbar error when the FullContact API returns a 410 Gone response.

The changes include:

• Updated exception handling in lib/fc_enrich/http_client.rb
• Added corresponding test case in spec/fc_enrich/http_client_spec.rb
• Version bump to 0.4.0 with changelog updates

Link to Devin run: https://app.devin.ai/sessions/1f00aa748b2347048ba8e3934e448e16
Requested by: Grant (@nexlbot)

[devin-ai-integration]

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[Copilot]

Pull Request Overview

This PR adds handling for HTTP 410 Gone responses from the FullContact API by treating them the same as 404 and 422 errors (returning nil instead of raising an exception). This fixes a Rollbar error when the API returns a 410 status code.

• Added RestClient::Gone to the rescue clause in HttpClient#post method
• Added test coverage for the new exception handling
• Updated version to 0.4.0 with changelog entry

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
lib/fc_enrich/http_client.rb	Added RestClient::Gone to existing rescue clause to return nil for 410 responses
spec/fc_enrich/http_client_spec.rb	Added test case to verify 410 Gone responses return nil
lib/fc_enrich/version.rb	Bumped version from 0.3.2 to 0.4.0
CHANGELOG.md	Added changelog entry for version 0.4.0 describing the new functionality

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