Merge branch 'js/objects-larger-than-4gb-on-windows'

Update code paths that assumed "unsigned long" was long enough for "size_t". * js/objects-larger-than-4gb-on-windows: ci: run expensive tests on push builds to integration branches t5608: mark >4GB tests as EXPENSIVE test-tool synthesize: add precomputed SHA-256 pack for 4 GiB + 1 test-tool synthesize: precompute pack for 4 GiB + 1 test-tool synthesize: use the unsafe hash for speed t5608: add regression test for >4GB object clone test-tool: add a helper to synthesize large packfiles delta, packfile: use size_t for delta header sizes odb, packfile: use size_t for streaming object sizes git-zlib: handle data streams larger than 4GB index-pack, unpack-objects: use size_t for object size