test(debugger): assert newly-exposed inputPath key (#8055)

The debugger's `getDebuggerConfig` helper now forwards the tracer's
`inputPath` alongside the existing fields. The test that pins the
exact set of keys was still enumerating the old list and would start
failing as soon as anyone touched the config snapshot, despite the new
key being fully intentional.

Add `inputPath` to the asserted set so this test tracks reality.
Pure catch-up — no behavior change.

Author: BridgeAR

packages/dd-trace/test/debugger/config.spec.js

@@ -27,6 +27,7 @@ describe('getDebuggerConfig', function () {
       'runtimeId',
       'service',
       'url',
+      'inputPath',
     ])
     assertObjectContains(config, {
       commitSHA: tracerConfig.commitSHA,