Add a fast path for URL construction when the netloc is the host #2004

Job	Run time
⚙️ Pre-set global build settings	1s
lint / Linter	1m 18s
📦 Build distribution packages	27s
📦 Build wheels for tested arches / Build wheels on windows	5m 9s
📦 Build wheels for tested arches / Build wheels on ubuntu	2m 44s
📦 Build wheels for tested arches / Build wheels on macos	3m 38s
Benchmark	2m 5s
Test (3.13, ubuntu-latest, false)	55s
Test (3.13, macos-latest, false)	48s
Test (3.13, windows-latest, false)	2m 38s
Test (3.13, Y, ubuntu-latest, false)	45s
Test (3.12, ubuntu-latest, false)	49s
Test (3.12, macos-latest, false)	32s
Test (3.12, windows-latest, false)	1m 4s
Test (3.12, Y, ubuntu-latest, false)	41s
Test (3.11, ubuntu-latest, false)	34s
Test (3.11, macos-latest, false)	31s
Test (3.11, windows-latest, false)	1m 27s
Test (3.11, Y, ubuntu-latest, false)	37s
Test (3.10, ubuntu-latest, false)	36s
Test (3.10, macos-latest, false)	33s
Test (3.10, windows-latest, false)	1m 9s
Test (3.10, Y, ubuntu-latest, false)	31s
Test (3.9, ubuntu-latest, false)	1m 0s
Test (3.9, macos-latest, false)	32s
Test (3.9, windows-latest, false)	1m 10s
Test (3.9, Y, ubuntu-latest, false)	32s
Test (pypy-3.10, Y, false, ubuntu-latest)	1m 24s
Test (pypy-3.9, Y, false, ubuntu-latest)	1m 18s
Test matrix status	2s
Pre-Deploy	0s
📦 Build wheels for odd arches${{ '' }}	0s
Deploy	0s
	35m 30s

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