Fix javascript error - 2 extra closing brackets in _onPreConnect #2757

Job	Run time
JavaScript Coding Style	54s
coding-style-php	36s
Check for UnBuilt JS Dist Files	1m 33s
tests-js	1m 35s
tests-php-components	4s
tests-php (8.1, lowest, Autocomplete)	34s
tests-php (8.1, lowest, Chartjs)	32s
tests-php (8.1, lowest, Cropperjs)	37s
tests-php (8.1, lowest, Dropzone)	30s
tests-php (8.1, lowest, LazyImage)	29s
tests-php (8.1, lowest, LiveComponent)	44s
tests-php (8.1, lowest, Notify)	26s
tests-php (8.1, lowest, React)	30s
tests-php (8.1, lowest, StimulusBundle)	22s
tests-php (8.1, lowest, Svelte)	22s
tests-php (8.1, lowest, TogglePassword)	22s
tests-php (8.1, lowest, Translator)	29s
tests-php (8.1, lowest, TwigComponent)	31s
tests-php (8.1, lowest, Vue)	21s
tests-php (8.1, highest, Autocomplete)	38s
tests-php (8.1, highest, Chartjs)	20s
tests-php (8.1, highest, Cropperjs)	22s
tests-php (8.1, highest, Dropzone)	35s
tests-php (8.1, highest, LazyImage)	29s
tests-php (8.1, highest, LiveComponent)	35s
tests-php (8.1, highest, Notify)	29s
tests-php (8.1, highest, React)	22s
tests-php (8.1, highest, StimulusBundle)	47s
tests-php (8.1, highest, Svelte)	32s
tests-php (8.1, highest, TogglePassword)	34s
tests-php (8.1, highest, Translator)	25s
tests-php (8.1, highest, TwigComponent)	35s
tests-php (8.1, highest, Vue)	25s
	18m 39s

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