[Security Solution] Auto bundle endpoint exceptions api openapi specs (…

…elastic#189665)

**Addresses**: elastic#184428

## Summary

This PR adds scripts for automatic bundling of Endpoint Exceptions API OpenAPI specs as a part of PR pipeline. Corresponding result bundles are automatically committed to the Endpoint Exceptions common package `kbn-securitysolution-endpoint-exceptions-common` in the `docs/openapi/ess/` and `docs/openapi/serverless` folders (similar to elastic#186384).

.buildkite/scripts/steps/code_generation/security_solution_codegen.sh

@@ -15,6 +15,9 @@ echo -e "\n[Security Solution OpenAPI Code Generation] Lists Common Package\n"
 echo -e "\n[Security Solution OpenAPI Code Generation] Exceptions Common Package\n"
 (cd packages/kbn-securitysolution-exceptions-common && yarn openapi:generate)
 
+echo -e "\n[Security Solution OpenAPI Code Generation] Endpoint Exceptions Common Package\n"
+(cd packages/kbn-securitysolution-endpoint-exceptions-common && yarn openapi:generate)
+
 echo -e "\n[Security Solution OpenAPI Code Generation] Security Solution Plugin\n"
 (cd x-pack/plugins/security_solution && yarn openapi:generate)
 

.buildkite/scripts/steps/openapi_bundling/security_solution_openapi_bundling.sh

@@ -21,6 +21,9 @@ echo -e "\n[Security Solution OpenAPI Bundling] Lists API\n"
 echo -e "\n[Security Solution OpenAPI Bundling] Exceptions API\n"
 (cd packages/kbn-securitysolution-exceptions-common && yarn openapi:bundle)
 
+echo -e "\n[Security Solution OpenAPI Bundling] Endpoint Exceptions API\n"
+(cd packages/kbn-securitysolution-endpoint-exceptions-common && yarn openapi:bundle)
+
 echo -e "\n[Security Solution OpenAPI Bundling] Endpoint Management API\n"
 (cd x-pack/plugins/security_solution && yarn openapi:bundle:endpoint-management)