Bump wpilib to 2026 beta (#2192)

## Description

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Bump to wpilib 2026 beta. This does not bump our pythonlib, as robotpy
hasn't come out yet.

## Meta

Merge checklist:
- [ ] Pull Request title is [short, imperative
summary](https://cbea.ms/git-commit/) of proposed changes
- [ ] The description documents the _what_ and _why_
- [ ] This PR has been
[linted](https://docs.photonvision.org/en/latest/docs/contributing/linting.html).
- [ ] If this PR changes behavior or adds a feature, user documentation
is updated
- [ ] If this PR touches photon-serde, all messages have been
regenerated and hashes have not changed unexpectedly
- [ ] If this PR touches configuration, this is backwards compatible
with settings back to v2025.3.2
- [ ] If this PR touches pipeline settings or anything related to data
exchange, the frontend typing is updated
- [ ] If this PR addresses a bug, a regression test for it is added

---------

Co-authored-by: Gold856 <117957790+Gold856@users.noreply.github.com>

docs/source/docs/advanced-installation/sw_install/windows-pc.md

@@ -12,15 +12,7 @@ Bonjour provides more stable networking when using Windows PCs. Install [Bonjour
 
 ## Installing Java
 
-PhotonVision requires a JDK installed and on the system path. **JDK 17 is needed. Windows Users must use the JDK that ships with WPILib.** [Download and install it from here.](https://github.com/wpilibsuite/allwpilib/releases/tag/v2025.3.2) Either ensure the only Java on your PATH is the WPILIB Java or specify it to gradle with `-Dorg.gradle.java.home=C:\Users\Public\wpilib\2025\jdk`:
-
-```
-> ./gradlew run "-Dorg.gradle.java.home=C:\Users\Public\wpilib\2025\jdk"
-```
-
-:::{warning}
-Using a JDK other than WPILIB's JDK17 will cause issues when running PhotonVision and is not supported.
-:::
+PhotonVision requires a JDK installed and on the system path. **JDK 17 is needed.** You may already have it if you installed WPILib, but ensure that running `java -version` shows JDK 17. You will likely have to add WPILib's JDK to JAVA_HOME and the JDK's `bin` directory to PATH. If you do not have a JDK 17 install, [download and install it from here.](https://adoptium.net/temurin/releases?version=17)
 
 ## Downloading the Latest Stable Release of PhotonVision