Update module go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp to v0.48.0 #17416

Job	Run time
govulncheck	59s
setup-environment	38s
unittest-matrix (~1.21.5)	4m 36s
unittest-matrix (~1.20.12)	3m 56s
test-coverage	4m 31s
checks	1m 56s
lint	3m 12s
cross-build-collector (darwin, amd64)	46s
cross-build-collector (darwin, arm64)	37s
cross-build-collector (linux, 386)	41s
cross-build-collector (linux, amd64)	47s
cross-build-collector (linux, arm64)	38s
cross-build-collector (linux, ppc64le)	39s
cross-build-collector (linux, arm, 7)	44s
cross-build-collector (linux, s390x)	37s
cross-build-collector (windows, 386)	39s
cross-build-collector (windows, amd64)	38s
unittest	1s
	26m 35s

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