Add policy-bot configuration file #4669

Job	Run time
Benchmark with Codspeed (Shard #6)	1m 1s
Benchmark with Codspeed (Shard #4)	59s
Benchmark with Codspeed (Shard #5)	2m 24s
Benchmark with Codspeed (Shard #7)	52s
Benchmark with Codspeed (Shard #1)	43s
Benchmark with Codspeed (Shard #2)	3m 58s
Benchmark with Codspeed (Shard #8)	53s
Detect CUDA changes	7s
Benchmark with Codspeed (Shard #3)	57s
Build Codspeed CUDA benchmarks	0s
Benchmark with Codspeed (CUDA Shard #${{ matrix.shard }} - ${{ matrix.name }})	0s
	11m 54s

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