Bump google.golang.org/grpc from 1.45.0 to 1.58.1 in /extension/bearertokenauthextension #1420

Job	Run time
setup-environment	17m 11s
stability-test (TestStabilityMetricsOTLP)	44s
stability-test (TestStabilityMetricsOpenCensus)	51s
stability-test (TestStabilityMetricsCarbon)	1m 4s
stability-test (TestStabilityMetricsSignalFx)	56s
stability-test (TestStabilityTracesOpenCensus)	59s
stability-test (TestStabilityTracesSAPM)	41s
stability-test (TestStabilityTracesOTLP)	57s
stability-test (TestStabilityTracesJaegerGRPC)	51s
stability-test (TestStabilityTracesZipkin)	1m 9s
	25m 23s

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