Remove `source.{dump, drop}`, add `request.{dump, process}`. #11792

Job	Run time
build_js	1m 58s
build_opam (4.14.x)	3m 0s
build_details	3s
build_opam (5.2.x)	2m 59s
build_no_depopts	2m 38s
lezer_parse	52s
build_win32 (x64)	2m 39s
build_posix (debian_trixie, amd64)	2m 37s
run_tests (@citest)	2m 40s
build_posix (debian_bookworm, amd64)	2m 41s
tree_sitter_parse	48s
run_tests (@doctest)	2m 40s
build_posix (ubuntu_oracular, amd64)	2m 39s
run_tests (@mediatest)	2m 39s
build_posix (ubuntu_noble, amd64)	2m 38s
build_posix (alpine, amd64)	2m 40s
update_doc	0s
fetch_s3_artifacts	1s
build_docker	1s
build_docker_alpine	1s
update_release	1s
build_docker_alpine_minimal	1s
build_docker_minimal	1s
build_docker_release	1s
build_docker_release-minimal	1s
	36m 19s

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