Bump github.com/iancoleman/strcase in /receiver/k8sclusterreceiver

Bumps [github.com/iancoleman/strcase](https://github.com/iancoleman/strcase) from 0.2.0 to 0.3.0.
- [Commits](iancoleman/strcase@v0.2.0...v0.3.0)

---
updated-dependencies:
- dependency-name: github.com/iancoleman/strcase
  dependency-version: 0.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

receiver/k8sclusterreceiver/go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/census-instrumentation/opencensus-proto v0.4.1
 	github.com/google/go-cmp v0.5.9
 	github.com/google/uuid v1.3.0
-	github.com/iancoleman/strcase v0.2.0
+	github.com/iancoleman/strcase v0.3.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/common v0.81.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal v0.81.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/k8sconfig v0.81.0