feat(rpc): Cookie auth system for the RPC endpoint #2075

Job	Run time
Check Cargo.lock is up to date	1m 7s
Install zebrad from lockfile without cache on ubuntu-latest	8m 36s
Check deny.toml bans	30s
Test stable on ubuntu-latest	10m 45s
Check deny.toml bans --features default-release-binaries	32s
Check for unused dependencies	15s
Check deny.toml bans --all-features	32s
Check deny.toml sources	32s
Check deny.toml sources --features default-release-binaries	37s
Test beta on ubuntu-latest	10m 44s
Check deny.toml sources --all-features	31s
Test stable on macos-latest	10m 48s
Test stable on windows-latest	10m 30s
Test beta on windows-latest	10m 29s
Open or update issues for OS integration failures	1s
	1h 6m 29s

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