feat(depinject): support for 29-fee (#6154)

* add generation of pulsar files

* remove wrong import

* remove code that should come in a different PR

* update pulsar files

* api go mod tidy

* feat(depinject): support for 29-fee

* remove import alias

* remove empty space

* remove legacy subspace

* put assertion back

* tidy all

* lint

* chore: consolidate protogen scripts

* review comments

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Co-authored-by: Damian Nolan <[email protected]>