Updates docker version for release (isaac-sim#6189)

# Description

Updates docker image for release to latest 3.0.0.beta2 tag.

## Type of change

- Documentation update

## Checklist

- [x] I have read and understood the [contribution
guidelines](https://isaac-sim.github.io/IsaacLab/main/source/refs/contributing.html)
- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [ ] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

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Author: kellyguo11

docs/source/deployment/docker.rst

@@ -322,7 +322,7 @@ To pull the minimal Isaac Lab container, run:
 
 .. code:: bash
 
-  docker pull nvcr.io/nvidia/isaac-lab:3.0.0-beta1
+  docker pull nvcr.io/nvidia/isaac-lab:3.0.0.beta2
 
 .. attention::
 
@@ -353,7 +353,7 @@ To run the Isaac Lab container with an interactive bash session, run:
      -v ~/docker/isaac-sim/logs:/root/.nvidia-omniverse/logs:rw \
      -v ~/docker/isaac-sim/data:/root/.local/share/ov/data:rw \
      -v ~/docker/isaac-sim/documents:/root/Documents:rw \
-     nvcr.io/nvidia/isaac-lab:3.0.0-beta1
+     nvcr.io/nvidia/isaac-lab:3.0.0.beta2
 
 To enable rendering through X11 forwarding, run:
 
@@ -372,7 +372,7 @@ To enable rendering through X11 forwarding, run:
      -v ~/docker/isaac-sim/logs:/root/.nvidia-omniverse/logs:rw \
      -v ~/docker/isaac-sim/data:/root/.local/share/ov/data:rw \
      -v ~/docker/isaac-sim/documents:/root/Documents:rw \
-     nvcr.io/nvidia/isaac-lab:3.0.0-beta1
+     nvcr.io/nvidia/isaac-lab:3.0.0.beta2
 
 To run an example within the container, run: