build(deps-dev): bump @patternfly/documentation-framework from 6.5.11 to 6.5.20 #512

Job	Run time
call-build-lint-test-workflow / build	1m 14s
call-build-lint-test-workflow / lint	1m 5s
call-build-lint-test-workflow / test_jest	1m 48s
call-build-lint-test-workflow / test_component	2m 10s
call-build-lint-test-workflow / test_e2e	1m 51s
call-build-lint-test-workflow / test_a11y	3m 31s
	11m 39s

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