ci: Fix failing CI by pinning bundler version #503

Job	Run time
docs	4m 59s
docs	4m 59s
tests (test:ios)	20m 41s
tests (test:ios)	1m 39s
tests (test:macos)	8m 1s
tests (test:macos)	8m 1s
tests (test:facebook_utils:ios)	11m 51s
tests (test:facebook_utils:ios)	11m 51s
tests (test:twitter_utils:ios)	9m 18s
tests (test:twitter_utils:ios)	9m 18s
tests (test:parseui:all)	10m 44s
tests (test:parseui:all)	10m 44s
tests (test:parse_live_query:all)	3m 28s
tests (test:parse_live_query:all)	3m 28s
tests (build:starters)	9m 35s
tests (build:starters)	9m 35s
tests (xcode15)	7m 34s
tests (xcode15)	7m 34s
	2h 33m 20s

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