fix(deps): update module cloud.google.com/go/pubsub to v1.45.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cloud.google.com/go/pubsub	v1.42.0 -> v1.45.0

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[renovate]

ℹ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 18 additional dependencies were updated

Details:

Package	Change
cloud.google.com/go/bigtable	v1.29.0 -> v1.31.0
google.golang.org/api	v0.193.0 -> v0.197.0
golang.org/x/oauth2	v0.22.0 -> v0.23.0
cloud.google.com/go/auth	v0.9.0 -> v0.9.3
go.opentelemetry.io/otel/sdk	v1.28.0 -> v1.29.0
go.opentelemetry.io/otel/sdk/metric	v1.28.0 -> v1.29.0
cloud.google.com/go/iam	v1.2.0 -> v1.2.1
github.com/cncf/xds/go	v0.0.0-20240723142845-024c85f92f20 -> v0.0.0-20240822171458-6449f94b4d59
github.com/google/btree	v1.1.2 -> v1.1.3
github.com/googleapis/enterprise-certificate-proxy	v0.3.2 -> v0.3.4
go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc	v0.53.0 -> v0.54.0
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp	v0.53.0 -> v0.54.0
go.opentelemetry.io/otel	v1.28.0 -> v1.29.0
go.opentelemetry.io/otel/metric	v1.28.0 -> v1.29.0
go.opentelemetry.io/otel/trace	v1.28.0 -> v1.29.0
google.golang.org/genproto	v0.0.0-20240820151423-278611b39280 -> v0.0.0-20240903143218-8af14fe29dc1
google.golang.org/genproto/googleapis/api	v0.0.0-20240820151423-278611b39280 -> v0.0.0-20240903143218-8af14fe29dc1
google.golang.org/genproto/googleapis/rpc	v0.0.0-20240820151423-278611b39280 -> v0.0.0-20240903143218-8af14fe29dc1