Request another block of custom option numbers (#18548)

We reserved a range of 10 a couple of years ago but are nearing exhausting that block. We anticipate needing to define more custom options, so this allocates another block of numbers to Buf.

Closes #18548

COPYBARA_INTEGRATE_REVIEW=https://github.com/protocolbuffers/protobuf/pull/18548 from jhump:jh/more-option-numbers 898fdec6db5ee9d74829caaadb15cf270e5641de
PiperOrigin-RevId: 680810934