Add metadata retrieved from the `context` to the user agent when a new HTTP client is created #5137

Job	Run time
run-determination	1s
package-name-prefix	1s
Create artifact Windows_X86-32	1m 10s
Create artifact Windows_X86-64	1m 10s
Create artifact Linux_X86-32	1m 7s
Create artifact Linux_X86-64	1m 14s
Create artifact Linux_ARMv6	1m 7s
Create artifact Linux_ARMv7	1m 4s
Create artifact Linux_ARM64	1m 2s
Create artifact macOS_64	1m 37s
Create artifact macOS_ARM64	1m 45s
Create artifact rpc-protocol-files	14s
Create artifact configuration-schema	13s
checksums	4s
	11m 49s

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