Bump go.opentelemetry.io/build-tools/multimod from 0.8.0 to 0.11.0 in /internal/tools #666

Job	Run time
setup-environment	47s
govulncheck	2m 17s
test-coverage	5m 27s
unittest (1.20)	5m 4s
unittest (1.19)	4m 15s
checks	2m 25s
cross-build-collector (darwin, amd64)	1m 6s
lint	3m 19s
cross-build-collector (darwin, arm64)	1m 31s
cross-build-collector (linux, 386)	1m 0s
cross-build-collector (linux, amd64)	45s
cross-build-collector (linux, arm64)	1m 5s
cross-build-collector (linux, ppc64le)	1m 4s
cross-build-collector (linux, arm, 7)	59s
cross-build-collector (windows, 386)	1m 9s
cross-build-collector (windows, amd64)	1m 26s
	33m 39s

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