update Fetch Licenses workflow to only create a PR if the generated files changed #107
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Description
PRs are created when the SPDX json files change data that is not included in go-spdx generated files. This is unnecessary since it does not impact or improve the operation of go-spdx. It is simply noise.
This update adds an additional check after files are generated to determine if those files were changed. A PR will be created only if the generated files have changed.