Bump go.opentelemetry.io/collector/confmap in /exporter/instanaexporter

Bumps [go.opentelemetry.io/collector/confmap](https://github.com/open-telemetry/opentelemetry-collector) from 0.78.1 to 0.91.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-collector/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-collector/blob/main/CHANGELOG-API.md)
- [Commits](open-telemetry/opentelemetry-collector@v0.78.1...v0.91.0)

---
updated-dependencies:
- dependency-name: go.opentelemetry.io/collector/confmap
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

exporter/instanaexporter/go.mod

@@ -4,10 +4,10 @@ go 1.19
 
 require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal v0.77.0
-	github.com/stretchr/testify v1.8.2
+	github.com/stretchr/testify v1.8.4
 	go.opentelemetry.io/collector v0.78.1
 	go.opentelemetry.io/collector/component v0.78.1
-	go.opentelemetry.io/collector/confmap v0.78.1
+	go.opentelemetry.io/collector/confmap v0.91.0
 	go.opentelemetry.io/collector/consumer v0.78.1
 	go.opentelemetry.io/collector/exporter v0.78.1
 	go.opentelemetry.io/collector/pdata v1.0.0-rcv0012
@@ -25,18 +25,20 @@ require (
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
+	github.com/hashicorp/go-version v1.6.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.16.5 // indirect
 	github.com/knadh/koanf v1.5.0 // indirect
+	github.com/knadh/koanf/v2 v2.0.1 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
-	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/mitchellh/mapstructure v1.5.1-0.20220423185008-bf980b35cac4 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rs/cors v1.9.0 // indirect
 	go.opencensus.io v0.24.0 // indirect
-	go.opentelemetry.io/collector/featuregate v1.0.0-rcv0012 // indirect
+	go.opentelemetry.io/collector/featuregate v1.0.0 // indirect
 	go.opentelemetry.io/collector/receiver v0.78.1 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.41.1 // indirect
 	go.opentelemetry.io/otel v1.15.1 // indirect