http: fix no_proxy leading-dot suffix matching #4405

Job	Run time
Build slim tarball	1m 53s
aarch64-darwin: with shared libraries	20m 23s
x86_64-darwin: with shared libraries	34m 3s
aarch64-linux: with shared libraries	17m 49s
x86_64-linux: with shared libraries	21m 29s
	1h 35m 37s

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