Bump go.opentelemetry.io/collector/pdata from 1.15.0 to 1.21.0 (#59)

Bumps [go.opentelemetry.io/collector/pdata](https://github.com/open-telemetry/opentelemetry-collector) from 1.15.0 to 1.21.0.
- [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@pdata/v1.15.0...pdata/v1.21.0)

---
updated-dependencies:
- dependency-name: go.opentelemetry.io/collector/pdata
  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

@@ -8,7 +8,7 @@ require (
 	github.com/onsi/ginkgo/v2 v2.20.2
 	github.com/onsi/gomega v1.34.2
 	github.com/stretchr/testify v1.10.0
-	go.opentelemetry.io/collector/pdata v1.15.0
+	go.opentelemetry.io/collector/pdata v1.21.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.33.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.30.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.33.0

go.sum

@@ -114,8 +114,8 @@ github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
-go.opentelemetry.io/collector/pdata v1.15.0 h1:q/T1sFpRKJnjDrUsHdJ6mq4uSqViR/f92yvGwDby/gY=
-go.opentelemetry.io/collector/pdata v1.15.0/go.mod h1:2wcsTIiLAJSbqBq/XUUYbi+cP+N87d0jEJzmb9nT19U=
+go.opentelemetry.io/collector/pdata v1.21.0 h1:PG+UbiFMJ35X/WcAR7Rf/PWmWtRdW0aHlOidsR6c5MA=
+go.opentelemetry.io/collector/pdata v1.21.0/go.mod h1:GKb1/zocKJMvxKbS+sl0W85lxhYBTFJ6h6I1tphVyDU=
 go.opentelemetry.io/otel v1.33.0 h1:/FerN9bax5LoK51X/sI0SVYrjSE0/yUL7DpxW4K3FWw=
 go.opentelemetry.io/otel v1.33.0/go.mod h1:SUUkR6csvUQl+yjReHu5uM3EtVV7MBm5FHKRlNx4I8I=
 go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.33.0 h1:Vh5HayB/0HHfOQA7Ctx69E/Y/DcQSMPpKANYVMQ7fBA=