feat!: remove deprecated CLI switches

[jkowalleck]

deprecated CLI switches to be removed:

• --schema-version (deprecated in rename CLI switch --schema-version --> --spec-version #870)
• --outfile (deprecated in rename CLI switch --outfile --> --output-file #874)

[jkowalleck]

this has been released as of https://github.com/CycloneDX/cyclonedx-python/releases/tag/v7.0.0