Add missing repository dependency in bazel_usage_example. #126

Job	Run time
MinGW (false, Debug, true)	1m 27s
MinGW (false, Release)	1m 41s
MinGW (true, Release)	1m 40s
MinGW (true, Release, true)	1m 41s
MSVC (windows-2022, 2022, 17, true, C:\Python39, C:\Program Files, Debug, 17)	26m 10s
MSVC (windows-2022, 2022, 17, true, C:\Python39, C:\Program Files, Release, 17)	20m 51s
MSVC (windows-2022, 2022, 17, false, C:\Python39, C:\Program Files, Debug, 17)	26m 33s
MSVC (windows-2022, 2022, 17, false, C:\Python39, C:\Program Files, Release, 17)	20m 39s
MSVC (windows-2022, 2022, 17, false, C:\Python39, C:\Program Files, Debug)	25m 45s
MSVC (windows-2022, 2022, 17, false, C:\Python39, C:\Program Files, Release)	20m 15s
MSVC (windows-2019, 2019, 16, false, C:\Python36, C:\Program Files (x86), Debug, 17)	25m 42s
MSVC (windows-2019, 2019, 16, false, C:\Python36, C:\Program Files (x86), Release, 17)	21m 10s
MSVC (windows-2019, 2019, 16, false, C:\Python36, C:\Program Files (x86), Debug)	22m 31s
MSVC (windows-2019, 2019, 16, false, C:\Python36, C:\Program Files (x86), Release)	20m 5s
	3h 56m 10s

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