gh-67041: Allow to distinguish between empty and not defined URI components #123416

Job	Run time
Change detection / Compute changed files	9s
Check if generated files are up to date	5m 6s
Windows MSI${{ '' }}	0s
Address sanitizer	7m 15s
Ubuntu SSL tests with OpenSSL (1.1.1w)	2m 3s
Ubuntu SSL tests with OpenSSL (3.0.13)	2m 8s
CIFuzz	0s
Ubuntu SSL tests with OpenSSL (3.1.5)	2m 5s
Hypothesis tests on Ubuntu	5m 13s
Ubuntu SSL tests with OpenSSL (3.2.1)	2m 0s
Thread sanitizer (free-threading) / Thread sanitizer	7m 17s
Thread sanitizer / Thread sanitizer	4m 18s
WASI / build and test	5m 25s
Ubuntu / build and test	7m 15s
Ubuntu (free-threading) / build and test	9m 21s
Windows / build (arm64)	2m 10s
Windows (free-threading) / build (arm64)	2m 26s
Windows / build and test (Win32)	15m 15s
Windows / build and test (x64)	15m 0s
Windows (free-threading) / build and test (Win32)	22m 36s
Windows (free-threading) / build and test (x64)	22m 18s
macOS (free-threading) / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	5m 15s
macOS / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	4m 50s
macOS / build and test (macos-13)	8m 46s
Docs / Docs	1m 51s
Docs / Docs (Oldest Sphinx)	1m 58s
Docs / Doctest	17m 27s
All required checks pass	2s
	2h 59m 29s

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