Add rate limiting to sessions controller #14793

Job	Run time
Linters (brakeman)	41s
Linters (rubocop)	49s
Linters (biome)	27s
Linters (erblint)	1m 36s
Linters (language_versions)	33s
docker-dnsmasq / all	1m 16s
cucumber / all	2m 50s
docker-postgis / all	1m 27s
docker-prod / all	5m 3s
docker-ruby / all	2m 43s
specs (bops_admin, engines) / bops_admin	1m 36s
specs (bops_api, engines) / bops_api	2m 34s
specs (bops_config, engines) / bops_config	1m 42s
specs (bops_consultees, engines, true) / bops_consultees	1m 49s
specs (bops_core, engines) / bops_core	1m 19s
specs (bops_uploads, engines) / bops_uploads	1m 21s
specs (components, true) / components	1m 52s
specs (models) / models	3m 30s
specs (other, {controllers,form_models,helpers,presenters,mailer,jobs,services,translations}) / other	2m 36s
specs (requests, true) / requests	2m 3s
specs (system: capybara, system, --tag 'capybara' --tag 'js', true) / system: capybara	8m 1s
specs (system: rack_test, system, --tag '~capybara' --tag '~js', true) / system: rack_test	6m 23s
	52m 11s

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