refactor: forester: add default tree / epoch #514

Job	Run time
programs (light-system-program-address, ["cargo-test-sbf -p system-test -- test_with_address", "c...	13m 43s
programs (light-system-program-compression, ["cargo-test-sbf -p system-test -- test_with_compress...	5m 23s
programs (system-cpi-test, ["cargo-test-sbf -p system-cpi-test", "cargo test -p light-system-prog...	19m 40s
programs (compressed-token-and-e2e, ["cargo test -p light-compressed-token", "cargo-test-sbf -p c...	17m 37s
programs (compressed-token-batched-tree, ["cargo-test-sbf -p compressed-token-test -- test_transf...	8m 59s
programs (system-cpi-test-v2-functional-read-only, ["cargo-test-sbf -p system-cpi-v2-test -- func...	15m 58s
programs (account-compression-and-registry, ["cargo-test-sbf -p account-compression-test", "cargo...	39m 8s
programs (system-cpi-test-v2-functional-account-infos, ["cargo-test-sbf -p system-cpi-v2-test -- ...	20m 26s
	2h 20m 54s

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