build(deps): bump golang.org/x/crypto from 0.17.0 to 0.31.0 in /samples/go/referenceapp #50

Job	Run time
Reference App: Build and Lint	1m 15s
Server: Build and Lint	1m 3s
AppEncryption: Bench (oldstable) / Run Benchmarks	1m 24s
AppEncryption: Integration (oldstable) / Run Integration Tests	2m 45s
AppEncryption: Bench (stable) / Run Benchmarks	1m 11s
SecureMemory: Bench (oldstable) / Run Benchmarks	52s
AppEncryption: Integration (stable) / Run Integration Tests	2m 54s
SecureMemory: Bench (stable) / Run Benchmarks	50s
	12m 14s

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