Add metadata retrieved from the `context` to the user agent when a new HTTP client is created #5000

Job	Run time
run-determination	1s
package-name-prefix	1s
Create artifact Windows_X86-32	1m 10s
Create artifact Windows_X86-64	1m 4s
Create artifact Linux_X86-32	1m 13s
Create artifact Linux_X86-64	1m 4s
Create artifact Linux_ARMv6	59s
Create artifact Linux_ARMv7	57s
Create artifact Linux_ARM64	54s
Create artifact macOS_64	1m 27s
Create artifact macOS_ARM64	1m 41s
Create artifact rpc-protocol-files	19s
Create artifact configuration-schema	16s
checksums	4s
	11m 10s

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