Bump govuk_chat_private from `c782cd4` to `65fb009` #17

Job	Run time
Lint JavaScript	14s
Lint ERB / Run ErbLint	24s
Lint Ruby / Run RuboCop	23s
Lint SCSS / Run Stylelint	21s
Security Analysis / Run Brakeman	30s
Test JavaScript / Run Jasmine	1m 1s
Test Ruby / Run RSpec	3m 55s
	6m 48s

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