Swift Test: Add HTML coverage report #16

Job	Run time
Test / Linux (nightly-main - amazonlinux2)	10m 30s
Test / macOS (Xcode 26.0 - sequoia - ARM64)	3m 40s
Test / iOS (Build Only, Xcode 26.0 - sequoia - ARM64)	3m 29s
Test / Linux (nightly-main - jammy)	9m 51s
Test / Windows (nightly-main - windows-2022)	29m 25s
Soundness / Documentation check	53s
Soundness / Python lint check	7s
Soundness / Broken symlinks check	8s
Soundness / YAML lint check	7s
Test / Linux (nightly-main - rhel-ubi9)	10m 21s
Test / Linux (nightly-main - noble)	10m 12s
Test / Linux (nightly-main - bookworm)	10m 5s
Soundness / Shell check	-21s
Test / Embedded Swift SDK for Wasm Build (${{ matrix.swift_version }} - ${{ matrix.os_version }})	-39s
Test / Static Linux Swift SDK Build (${{ matrix.swift_version }} - ${{ matrix.os_version }})	-39s
Soundness / API breakage check	-61s
Soundness / Unacceptable language check	-61s
Test / Swift SDK for Android Build (${{ matrix.swift_version }} - ${{ matrix.os_version }} - NDK ${{ matrix.ndk_version }})	-64s
Soundness / License headers check	-82s
Test / Swift SDK for Wasm Build (${{ matrix.swift_version }} - ${{ matrix.os_version }})	-85s
Soundness / Format check	-90s
	1h 19m 46s

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