Bump github.com/aws/aws-sdk-go from 1.43.37 to 1.45.7 in /exporter/awsemfexporter #1262

Job	Run time
setup-environment	8m 15s
lint	2m 12s
check-collector-module-version	12s
build-examples	1m 7s
checks	2m 9s
correctness-metrics	4m 17s
correctness-traces	5m 52s
integration-tests	9m 8s
unittest (1.18)	1m 51s
unittest (1.17)	2m 18s
cross-compile	0s
windows-msi	0s
build-package	0s
publish-check	0s
publish-dev	0s
publish-stable	0s
	37m 21s

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