[OUTDATED] feat!: v4.0.0

[madpah]

--> continued in #605

---

NOTE: THIS PR WILL NOT BE MERGED UNTIL AFTER RELEASE OF cyclonedx-python-lib 4.0.0

This is the main PR for all release 4.0.0 work.

Includes:

• Upgrade cyclonedx-python-lib to 4.0.x #520 via feat: bump cyclonedx-python-lib to latest RC of 4.0.x #521
• [BREAKING] Drop support for Python 3.6 #522 via feat: bump cyclonedx-python-lib to latest RC of 4.0.x #521
• [CHORE] Upgrade to poetry 1.4.x #523 via feat: bump cyclonedx-python-lib to latest RC of 4.0.x #521
• chore: fix poetry lock file #491 believed to be resolved due to [CHORE] Upgrade to poetry 1.4.x #523
• chore: use mypy: ^1.0 #500
• BC: remove deprecated command cyclonedx-bom #488
• Feat: omit development dependencies from SBOM results #474 via Feat: omit development dependencies from SBOM results #534 (supplied by @t-graf)
• Upgrade cyclonedx-python-lib to 4.0.x #520 via feat: use cyclonedx-python-lib 4.0.0 #536
• feat: environment licenses as proper SPDX #459 via feat: environment licenses as proper SPDX #576 chore(dependencies): bump cyclonedx-python-lib@^4 -> @^4.2 #578
• Validation via feat: validate output #591

In progress:

• [BREAKING CHANGE] Refactor BOM generation to a subcommand of cyclonedx-py #527 via feat: move existing BOM generation to make-bom subcommand #533

Resolves / Invalidates PRs:

• chore(deps): Bump cyclonedx-python-lib from 2.0.0 to 2.4.0 #509
• chore(deps): Bump attrs from 21.4.0 to 22.2.0 #476
• chore(deps): Bump distlib from 0.3.4 to 0.3.6 #457
• chore(deps): Bump colorama from 0.4.4 to 0.4.5 #455

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
Report missing for 46cd5171	55.65%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (46cd517)	Report Missing	Report Missing	Report Missing
Head commit (8006cfd)	525	325	61.91%

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#524)	124	69	55.65%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[jkowalleck]

superseded by #605