Bump go.opentelemetry.io/collector from 0.35.0 to 0.38.0 (#295)

Bumps [go.opentelemetry.io/collector](https://github.com/open-telemetry/opentelemetry-collector) from 0.35.0 to 0.38.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-collector/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-collector/blob/main/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-collector@v0.35.0...v0.38.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -7,15 +7,15 @@ require (
 	github.com/bmatcuk/doublestar/v3 v3.0.0
 	github.com/jpillora/backoff v1.0.0
 	github.com/json-iterator/go v1.1.11
-	github.com/mitchellh/mapstructure v1.4.1
+	github.com/mitchellh/mapstructure v1.4.2
 	github.com/observiq/ctimefmt v1.0.0
 	github.com/observiq/go-syslog/v3 v3.0.2
 	github.com/observiq/nanojack v0.0.0-20201106172433-343928847ebc
 	github.com/stretchr/testify v1.7.0
-	go.opentelemetry.io/collector v0.35.0
-	go.uber.org/zap v1.19.0
+	go.opentelemetry.io/collector v0.38.0
+	go.uber.org/zap v1.19.1
 	golang.org/x/exp v0.0.0-20200331195152-e8c3332aa8e5 // indirect
-	golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1
+	golang.org/x/sys v0.0.0-20210816074244-15123e1e1f71
 	golang.org/x/text v0.3.7
 	gonum.org/v1/gonum v0.9.3
 	gopkg.in/yaml.v2 v2.4.0
@@ -40,13 +40,11 @@ require (
 	github.com/rogpeppe/go-internal v1.6.1 // indirect
 	github.com/stretchr/objx v0.2.0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
-	go.uber.org/multierr v1.6.0 // indirect
-	golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 // indirect
+	go.uber.org/multierr v1.7.0 // indirect
 	golang.org/x/net v0.0.0-20210614182718-04defd469f4e // indirect
 	golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c // indirect
 	golang.org/x/term v0.0.0-20210220032956-6a3ed077a48d // indirect
 	golang.org/x/time v0.0.0-20210611083556-38a9dc6acbc6 // indirect
-	golang.org/x/tools v0.1.2 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/protobuf v1.27.1 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect