Bump openapi-generator-maven-plugin from 4.3.0 to 5.1.0 in /samples/sample-api-first-approach#16

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dependabot/maven/samples/sample-api-first-approach/org.openapitools-openapi-generator-maven-plugin-5.1.0elibracha/openapi-diff-ignore:dependabot/maven/samples/sample-api-first-approach/org.openapitools-openapi-generator-maven-plugin-5.1.0Copy head branch name to clipboard