floss: Add versions to all Cargo.toml dependencies

Replace all '*' dependencies with numerical dependencies. Using '*' is
not recommended and it interferes with our vendored repo from having
multiple major versions of the same library.

Bug: 264711862
Tag: #floss
Test: ./floss/build/build-in-podman.py

Change-Id: Idb241ab94587bd7929bf5e7b20c473e7b359fbc9