[misc] chore: bump version to v0.6.0 (verl-project#3773)

### What does this PR do?

bump version to v0.6.0

[misc] chore: bump version to v0.5.0 (verl-project#2716)

[distro] chore: bump version to v0.4.1

[release] chore: pin version to v0.4.0

distro: bump version to 0.3.0.post1

bump version to v0.3.0.post0

distro: bump version to 0.3.0

distro: bump version to 0.2.0.post2. restrict vllm to v0.6.3 instead …

…of v0.6.3.post1 (verl-project#320)

distro: bump up version to v0.2.0.post1

release: bump up version to v0.2