fix: remove duplicates from file responses

[WillieRuemmele]

What does this PR do?

removes duplicates from file responses

before:

 ➜  bug sf project deploy start --metadata-dir dup
Debugger listening on ws://127.0.0.1:9229/b0f755b5-6e94-4861-8126-144a41f751ba
For help, see: https://nodejs.org/en/docs/inspector
Debugger attached.
Deploying <version specified in manifest> metadata to [email protected] using the v58.0 SOAP API.
Deploy ID: 0Af8N00000uI9ZCSA0
Status: Failed | ████████████████████████████████████████ | 2/2 Components (Errors:2) | 0/0 Tests (Errors:0)
Debugger ending on ws://127.0.0.1:9229/b0f755b5-6e94-4861-8126-144a41f751ba
For help, see: https://nodejs.org/en/docs/inspector

Component Failures [2]
===============================================================
| Type  Name             Problem                    Line:Column 
| ───── ──────────────── ────────────────────────── ─────────── 
| Error GeocodingService Unexpected token 'static'. 2:12        
| Error GeocodingService Unexpected token 'static'. 2:12   

after

 ➜  bug sf project deploy start --metadata-dir dup
Debugger listening on ws://127.0.0.1:9229/9d509851-7f65-44b6-b4ac-2392d048451d
For help, see: https://nodejs.org/en/docs/inspector
Debugger attached.
Deploying <version specified in manifest> metadata to [email protected] using the v58.0 SOAP API.
Deploy ID: 0Af8N00000uILdqSAG
Status: Failed | ████████████████████████████████████████ | 2/2 Components (Errors:2) | 0/0 Tests (Errors:0)

Component Failures [1]
===============================================================
| Type  Name             Problem                    Line:Column 
| ───── ──────────────── ────────────────────────── ─────────── 
| Error GeocodingService Unexpected token 'static'. 2:12      

What issues does this PR fix or reference?

@W-14262002@

[mshanemc]

had to manually run all the tests here 🤷🏻
https://github.com/forcedotcom/source-deploy-retrieve/actions/runs/6549455042