Add `skip_record_validation_percents_by_type` indexer config for sampled backfill validation #5085

Job	Run time
docker-demo	3m 1s
ci-check (run_each_gem_spec, 3.4, elasticsearch:9.4.2)	20m 31s
ci-check (run_specs_for_jruby, jruby-10.0, elasticsearch:9.4.2, 1)	23m 30s
ci-check (run_specs_for_jruby, jruby-10.0, elasticsearch:9.4.2, 4)	15m 21s
ci-check (run_specs_for_jruby, jruby-10.0, elasticsearch:9.4.2, 2)	8m 18s
ci-check (run_datastore_specs, 4.0, opensearch:2.19.0)	6m 19s
ci-check (run_datastore_specs, 4.0, opensearch:3.6.0)	6m 26s
ci-check (run_specs_with_vcr, 4.0, elasticsearch:9.4.2)	14m 2s
lint-workflows	18s
ci-check (run_misc_checks, 4.0, elasticsearch:9.4.2)	15m 20s
ci-check (run_each_gem_spec, 4.0, elasticsearch:9.4.2)	21m 34s
ci-check (run_specs_for_jruby, jruby-10.0, elasticsearch:9.4.2, 3)	17m 48s
ci-check (run_datastore_specs, 4.0, elasticsearch:9.0.0)	5m 43s
ci-check (run_specs_file_by_file, 4.0, elasticsearch:9.4.2)	22m 0s
All CI Checks Passed	11s
	3h 0m 22s

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