Bump rexml from 3.2.8 to 3.3.6 #1

Job	Run time
catalyst	3m 24s
diagnostics (tsan)	41s
diagnostics (asan)	1m 3s
diagnostics (ubsan)	56s
pod_lib_lint (FirebaseAppCheckInterop.podspec, ios, macos-14)	1m 21s
spm (iOS, macos-14)	32s
pod_lib_lint (FirebaseAppCheckInterop.podspec, ios, macos-13)	4m 38s
spm (iOS, macos-13)	47s
pod_lib_lint (FirebaseAppCheckInterop.podspec, tvos, macos-14)	1m 22s
spm (tvOS, macos-14)	1s
pod_lib_lint (FirebaseAppCheckInterop.podspec, tvos, macos-13)	3m 29s
spm (tvOS, macos-13)	1s
pod_lib_lint (FirebaseAppCheckInterop.podspec, macos --skip-tests, macos-14)	1m 47s
spm (macOS, macos-14)	2s
pod_lib_lint (FirebaseAppCheckInterop.podspec, macos --skip-tests, macos-13)	2m 54s
spm (macOS, macos-13)	8s
pod_lib_lint (FirebaseAppCheckInterop.podspec, watchos, macos-14)	1m 11s
spm (catalyst, macos-14)	30s
pod_lib_lint (FirebaseAppCheckInterop.podspec, watchos, macos-13)	3m 39s
spm (catalyst, macos-13)	1m 2s
pod_lib_lint (FirebaseAppCheck.podspec, ios, macos-14)	10m 44s
spm (watchOS, macos-14)	1s
pod_lib_lint (FirebaseAppCheck.podspec, ios, macos-13)	53m 57s
spm (watchOS, macos-13)	1s
pod_lib_lint (FirebaseAppCheck.podspec, tvos, macos-14)	4m 55s
pod_lib_lint (FirebaseAppCheck.podspec, tvos, macos-13)	6m 52s
pod_lib_lint (FirebaseAppCheck.podspec, macos --skip-tests, macos-14)	2m 55s
pod_lib_lint (FirebaseAppCheck.podspec, macos --skip-tests, macos-13)	5m 9s
pod_lib_lint (FirebaseAppCheck.podspec, watchos, macos-14)	2m 30s
pod_lib_lint (FirebaseAppCheck.podspec, watchos, macos-13)	4m 22s
app_check-cron-only	0s
	2h 0m 54s

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