remove zizmor

[derrickaw]

1. Precommit GHA is failing
2. Addressing this comment - Add zizmor to existing precommit GHA workflow #39108 (comment) - Apparently policy changed probably with Apache projects.
3. We should get zizmor added to the allowlist, but for now we will just revert.
4. Reverting Add zizmor to existing precommit GHA workflow #39108
5. Passing workflow - https://github.com/apache/beam/actions/runs/29529142122

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