fix(agno): correct sourceRoot to match namespace package structure

Update sourceRoot in project.json from non-existent 'opentelemetry_instrumentation_agno' to the actual namespace package path 'packages/opentelemetry-instrumentation-agno/opentelemetry/instrumentation/agno' to match the repository layout used by other namespace-based instrumentors.

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: nirga

packages/opentelemetry-instrumentation-agno/project.json

@@ -2,7 +2,7 @@
   "name": "opentelemetry-instrumentation-agno",
   "$schema": "../../node_modules/nx/schemas/project-schema.json",
   "projectType": "library",
-  "sourceRoot": "packages/opentelemetry-instrumentation-agno/opentelemetry_instrumentation_agno",
+  "sourceRoot": "packages/opentelemetry-instrumentation-agno/opentelemetry/instrumentation/agno",
   "targets": {
     "lock": {
       "executor": "@nxlv/python:run-commands",