Bump litellm from 1.83.0 to 1.83.7 #4932

Job	Run time
cloud-test	1m 46s
test-latest-deps	9m 40s
check-protos	30m 15s
build-lint-test (3.14, windows-latest)	17m 58s
features-tests / test	8m 3s
build-lint-test (3.14, ubuntu-latest)	16m 5s
build-lint-test (3.10, macos-intel)	19m 15s
build-lint-test (3.10, macos-arm)	11m 17s
build-lint-test (3.10, windows-latest)	13m 33s
build-lint-test (3.10, ubuntu-arm)	11m 29s
build-lint-test (3.14, macos-arm)	9m 1s
build-lint-test (3.14, ubuntu-arm)	10m 19s
build-lint-test (3.14, macos-intel)	16m 45s
build-lint-test (3.10, ubuntu-latest)	13m 42s
	3h 9m 8s

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