feat: emit webpack as metadata.tools

[jkowalleck]

in preparation for #1019

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.04%	✅ 100.00% (target: 80.00%)

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (8175f47)	752	704	93.62%
Head commit (4e8d9bc)	757 (+5)	709 (+5)	93.66% (+0.04%)

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 (#1354)	6	6	100.00%

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]

was released via https://github.com/CycloneDX/cyclonedx-webpack-plugin/releases/tag/v4.0.0