Add time crate support for Timestamp #247

Job	Run time
Style Check (clippy)	56s
Unit and Doc Tests (Rust MSRV on ubuntu-latest)	1m 48s
Code Coverage (stable/ubuntu-latest)	1m 40s
Unit and Doc Tests (Rust MSRV on windows-latest)	2m 47s
Integration Tests (Rust Stable with curl-client)	57s
Unit and Doc Tests (Rust MSRV on macOS-latest)	2m 19s
README Format Check	1m 6s
Integration Tests (Rust Stable with h1-client)	1m 3s
Integration Tests (Rust Stable with h1-client-rustls)	58s
Unit and Doc Tests (Rust Stable on ubuntu-latest)	32s
Style Checks (rustfmt)	12s
Unit and Doc Tests (Rust Stable on windows-latest)	1m 5s
Integration Tests (Rust Stable with hyper-client)	1m 7s
Integration Tests (Rust Stable with reqwest-client-rustls)	33s
Unit and Doc Tests (Rust Stable on macOS-latest)	35s
Unit and Doc Tests (Rust Beta on ubuntu-latest)	21s
Integration Tests (Rust Stable with reqwest-client-native-tls)	46s
Unit and Doc Tests (Rust Beta on windows-latest)	1m 9s
Integration Tests (Rust Stable with reqwest-client-native-tls-vendored)	2m 0s
Unit and Doc Tests (Rust Beta on macOS-latest)	39s
Unit and Doc Tests (Rust Nightly on ubuntu-latest)	27s
Unit and Doc Tests (Rust Nightly on windows-latest)	1m 33s
Unit and Doc Tests (Rust Nightly on macOS-latest)	39s
pages	0s
	25m 12s

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