Java "11" is not required (especially for Windows)

### Page link:

https://bazel.build/install/windows#install-compilers

### Problem description (include actual vs expected text, if applicable):

https://github.com/bazelbuild/bazel/blob/83830c264f135893e1db1a425ea7c008717e1f39/site/en/install/windows.md?plain=1#L108

This line is incorrect and confused me a lot. It should be removed.

https://github.com/google/mozc/issues/932#issuecomment-2395098791

Bazel for Windows these days automatically installs Zulu 21.


```
tatsu@TATSU-DPC-2ND  ~\..\..\..\..\..\bin  ./java --version
openjdk 21 2023-09-19
OpenJDK Runtime Environment Zulu21.28+85-CA (build 21+35)
OpenJDK 64-Bit Server VM Zulu21.28+85-CA (build 21+35, mixed mode)
tatsu@TATSU-DPC-2ND  ~\..\..\..\..\..\bin  java --version
openjdk 21.0.3 2024-04-16 LTS
OpenJDK Runtime Environment Temurin-21.0.3+9 (build 21.0.3+9-LTS)
OpenJDK 64-Bit Server VM Temurin-21.0.3+9 (build 21.0.3+9-LTS, mixed mode, sharing)
tatsu@TATSU-DPC-2ND  ~\..\..\..\..\..\bin  bazel --version
bazel 7.3.2
```

### Where do you see this issue? (include link to specific section of the page, if applicable)

_No response_

### Any other information you'd like to share?

Python "3.6" is a stale information too.

Start with site/en/install/windows.md, especially the referenced line around 108, and inspect the linked Windows installation page for the Java 11 statement and the stale Python 3.6 information. Update the documentation so the listed requirements match current Bazel behavior, then verify the rendered installation page and surrounding instructions remain accurate.

Written by the indexing model from the issue text.