codeowners: Add USB codeowners to docs/usb
/docs/**/api-reference/bluetooth/ @esp-idf-codeowners/bluetooth
/docs/**/api-reference/network/ @esp-idf-codeowners/network
/docs/**/api-reference/peripherals/ @esp-idf-codeowners/peripherals
+/docs/**/api-reference/peripherals/usb* @esp-idf-codeowners/peripherals @esp-idf-codeowners/peripherals/usb
/docs/**/api-reference/protocols/ @esp-idf-codeowners/network @esp-idf-codeowners/app-utilities
/docs/**/api-reference/provisioning/ @esp-idf-codeowners/app-utilities/provisioning
/docs/**/api-reference/storage/ @esp-idf-codeowners/storage
