fix: remove placebo (vulkan not support in wsl2 yet

[Tohrusky]

vulkan暂时不好整

Summary by Sourcery

Remove libplacebo and update mbfunc.

Build:

• Remove libplacebo from vs-pytorch-rocm.dockerfile and vs-pytorch.dockerfile.
• Update mbfunc from 0.0.3 to 0.1.0 in vs-pytorch-rocm.dockerfile and vs-pytorch.dockerfile.
• Chain installation commands for ssh in vs-playground.dockerfile.

Documentation:

• Remove libplacebo.so from the list of VapourSynth plugins in README.md.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request removes the installation of the placebo library and its associated VapourSynth plugin from the Dockerfiles. This is because Vulkan, which placebo relies on, is not yet supported in WSL2.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Removed placebo and vs-placebo installation.	Removed the git clone command for libplacebo. Removed the meson build and install commands for libplacebo. Removed the git clone command for vs-placebo. Removed the meson build and install commands for vs-placebo. Removed the symbolic link creation for libplacebo.so.	vs-pytorch-rocm.dockerfile vs-pytorch.dockerfile
Updated mbfunc version.	Updated mbfunc version from 0.0.3 to 0.1.0.	vs-pytorch-rocm.dockerfile vs-pytorch.dockerfile
Modified ssh configuration in vs-playground.dockerfile.	Combined multiple RUN commands into a single one using &&.	vs-playground.dockerfile
Removed libplacebo and libvs_placebo from README.md.	Removed libplacebo.so from the list of libraries. Removed libvs_placebo.so from the list of libraries.	README.md

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[sourcery-ai]

Hey @Tohrusky - I've reviewed your changes and found some issues that need to be addressed.

Blocking issues:

• Hardcoded root password found. (link)

Overall Comments:

• Please improve the commit message and PR description to clearly explain why Vulkan/libplacebo support is being removed and any implications for users.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🔴 Security: 1 blocking issue
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[sourcery-ai]

🚨 issue (security): Hardcoded root password found.

The root password 123456 is hardcoded in the Dockerfile. This is a significant security risk and should be removed. Consider using a more secure mechanism for setting the root password, such as using environment variables or generating a random password during container startup.