Update grpcio-tools requirement from ~=1.59.0 to ~=1.69.0 in /dev_tools/requirements #16438

Job	Run time
Format check	10s
Packaging test	1m 19s
Misc check	5s
Changed files test	1m 1s
Lint check	4m 16s
Type check	1m 34s
Build protos	13s
Coverage check	12m 45s
Isolated pytest Ubuntu	8m 5s
Doc test	1m 47s
Pytest MacOS (3.10)	11m 35s
Notebook formatting	14s
Pytest MacOS (3.11)	9m 16s
Notebook Tests against PR	10m 40s
Pytest MacOS (3.12)	16m 40s
Changed Notebooks Isolated Test against Cirq stable (partition-0)	5m 2s
Changed Notebooks Isolated Test against Cirq stable (partition-1)	7m 38s
Changed Notebooks Isolated Test against Cirq stable (partition-2)	5m 11s
Check consistency of requirements	22s
Pytest Ubuntu (3.10)	7m 30s
Pytest Ubuntu (3.11)	7m 30s
Shell check	7s
Changed Notebooks Isolated Test against Cirq stable (partition-3)	6m 12s
Pytest Ubuntu (3.12)	10m 21s
Pytest Ubuntu with NumPy-2 (3.10)	7m 58s
Pytest Ubuntu with NumPy-2 (3.11)	7m 36s
Bundle file consistency	47s
Typescript lint check	34s
Pytest Ubuntu with NumPy-2 (3.12)	10m 10s
Pytest Windows (3.10)	14m 45s
Typescript tests coverage	37s
Pytest Windows (3.11)	14m 54s
Typescript tests	37s
Pytest Windows (3.12)	16m 49s
	3h 24m 20s

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