Add migration for merging `core` and `std` libraries (#7010) #23749

Job	Run time
build-reference-examples	1m 46s
build-sway-examples	1m 7s
build-sway-lib-core	56s
build-sway-lib-std	1m 4s
forc-fmt-check-panic	2m 36s
forc-fmt-check-sway-examples	45s
forc-fmt-check-sway-lib-core	1m 23s
forc-fmt-check-sway-lib-std	1m 4s
get-fuel-core-version	33s
build-forc-doc-sway-lib-std	1m 39s
build-forc-test-project	3m 15s
build-mdbook	5m 39s
cargo-build-workspace	2m 1s
cargo-clippy	1m 4s
cargo-fmt-check	14s
cargo-run-e2e-test-evm	5m 40s
cargo-test-forc	1m 31s
cargo-test-lib-std	12m 18s
cargo-test-sway-lsp	9m 59s
cargo-test-workspace	6m 40s
cargo-toml-fmt-check	12s
check-sdk-harness-test-suite-compatibility	29s
forc-pkg-fuels-deps-check	24s
forc-unit-tests	12m 6s
forc-run-benchmarks	4m 10s
cargo-unused-deps-check	2m 58s
pre-publish-check	0s
cargo-test-forc-client	3m 40s
cargo-run-e2e-test-release	14m 53s
cargo-run-e2e-test	14m 5s
cargo-test-forc-debug	3m 2s
cargo-test-forc-node	1m 14s
build-publish-master-image	6m 15s
notify-slack-on-failure	2s
publish	0s
build-publish-release-image	0s
Build and upload forc binaries to release	0s
verifications-complete	0s
	2h 4m 44s

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