perf: Add `Session::new_without_boot_contracts()` to avoid loading th… #5568

Job	Run time
Get Release Info	6s
Sanity checks	30s
Run cargo tests (windows-latest, windows, x86_64-pc-windows-msvc, x64)	5m 0s
Run cargo tests (ubuntu-22.04, linux, x86_64-unknown-linux-gnu, x64, glibc)	5m 27s
Run cargo tests (macos-latest, darwin, aarch64-apple-darwin, arm64)	4m 8s
Build Clarinet Distributions (ubuntu-22.04, linux, x86_64-unknown-linux-gnu, x64, glibc)	3m 1s
Build Clarinet Distributions (windows-latest, windows, x86_64-pc-windows-msvc, x64)	6m 31s
Build Clarinet Distributions (macos-latest, darwin, x86_64-apple-darwin, x64)	4m 15s
Build Clarinet Distributions (ubuntu-latest, linux, x86_64-unknown-linux-musl, x64, musl)	3m 9s
Build Clarinet Distributions (macos-latest, darwin, aarch64-apple-darwin, arm64)	3m 18s
Release	0s
	35m 25s

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